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  • 251.
    Anderson, Peter
    et al.
    Newcastle Univ, England; Maastricht Univ, Netherlands.
    Kloda, Karolina
    Pomeranian Med Univ, Poland.
    Kaner, Eileen
    Newcastle Univ, England.
    Reynolds, Jillian
    Hosp Clin Barcelona, Spain.
    Bendtsen, Preben
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i västra Östergötland, Medicinska specialistkliniken.
    Pelgrum-Keurhorst, Myrna N.
    Radboud Univ Nijmegen, Netherlands; Saxion Univ Appl Sci, Netherlands.
    Segura, Lidia
    Govt Catalonia, Spain.
    Wojnar, Marcin
    Med Univ Warsaw, Poland.
    Mierzecki, Artur
    Pomeranian Med Univ, Poland.
    Deluca, Paolo
    King’s College London, London, UK.
    Newbury-Birch, Dorothy
    Teesside Univ, England.
    Parkinson, Kathryn
    Newcastle Univ, England; State Agcy Prevent Alcohol Related Problems, Poland.
    Okulicz-Kozaryn, Katarzyna
    State Agency for Prevention of Alcohol-Related Problems, Warsaw, Poland.
    Drummond, Colin
    Kings Coll London, England; South London and Maudsley NHS Fdn Trust, England.
    Laurant, Miranda G. H.
    Radboud Univ Nijmegen, Netherlands; HAN Univ Appl Sci, Netherlands.
    Gual, Antoni
    Neurosciences Institute, Hospital Clinic, IDIBAPS, Barcelona, Spain.
    Impact of practice, provider and patient characteristics on delivering screening and brief advice for heavy drinking in primary healthcare: Secondary analyses of data from the ODHIN five-country cluster randomized factorial trial2017Ingår i: European Journal of General Practice, ISSN 1381-4788, E-ISSN 1751-1402, Vol. 23, nr 1, s. 241-245Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: The implementation of primary healthcare-based screening and advice that is effective in reducing heavy drinking can be enhanced with training. Objectives: Undertaking secondary analysis of the five-country ODHIN study, we test: the extent to which practice, provider and patient characteristics affect the likelihood of patients being screened and advised; the extent to which such characteristics moderate the impact of training in increasing screening and advice; and the extent to which training mitigates any differences due to such characteristics found at baseline. Methods: A cluster randomized factorial trial involving 120 practices, 746 providers and 46 546 screened patients from Catalonia, England, the Netherlands, Poland, and Sweden. Practices were randomized to receive training or not to receive training. The primary outcome measures were the proportion of adult patients screened, and the proportion of screen-positive patients advised. Results: Nurses tended to screen more patients than doctors (OR = 3.1; 95% CI: 1.9, 4.9). Screenpositive patients were more likely to be advised by doctors than by nurses (OR = 2.3; 95% CI: 1.4, 4.1), and more liable to be advised the higher their risk status (OR = 1.9; 95% CI: 1.3, 2.7). Training increased screening and advice giving, with its impact largely unrelated to practice, provider or patient characteristics. Training diminished the differences between doctors and nurses and between patients with low or high-risk status. Conclusions: Training primary healthcare providers diminishes the negative impacts that some practice, provider and patient characteristics have on the likelihood of patients being screened and advised.

  • 252.
    Andersson, Anna-Maria
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten.
    Mycobacterium tuberculosis and HIV coinfection: Effects on innate immunity and strategies to boost the immune response2019Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    Tuberculosis (TB) still remains a big threat today, being the leading cause of death by a single infectious agent. The TB epidemic is fueled by HIV along with the increasing drug-resistance which prolongs the already long treatment duration and decreases the success rate for curing TB. In most cases an infection results in latency but HIV patients have a 20-30 times higher risk of developing active TB. There are around 36.9 million people living with HIV globally, with the highest burden in Africa. Although there are effective treatments against the disease, there is no cure for AIDS and the availability of the lifelong treatment is limited in low-income countries were the burden is highest. HIV infection causes an immunodeficiency characterized by the progressive loss of CD4 T cells which increases the risk of opportunistic infections, and infection by Mycobacterium tuberculosis (Mtb), the causative agent of TB. Mtb spreads through aerosols from one person with active tuberculosis to a healthy person. Upon inhalation the bacteria are phagocytosed by alveolar macrophages that secrete cytokines and chemokines to recruit more cells, such as dendritic cells, macrophages and lymphocytes, leading to the formation of a granuloma. During a single TB infection the bacteria are usually contained within the granuloma, but HIV can disrupt the stable granuloma, causing a rupture and dissemination of Mtb. This inflammatory site is also beneficial to HIV since it promotes replication of the virus within infected cells. HIV and Mtb are two successful intracellular pathogens able to avoid immune defense mechanisms both of the innate and adaptive immunity in order to persist and replicate. Their virulence factors can manipulate or inhibit cell signaling, phagosome maturation, autophagy, ROS production, apoptosis and antigen presentation, to promote survival. Boosting of immune defenses with host-directed therapies (HDT) has been proposed as a treatment strategy against TB, either alone or adjunctive to the current regimen.

    In this thesis, ways to boost the innate immune responses in Mtb and HIV coinfected macrophages were investigated, along with studies of the effect of HIV on Mtb antigen presentation in coinfected dendritic cells. The initial hypothesis was that autophagy induction through inhibition of mammalian target of rapamycin (mTOR) could suppress Mtb growth in HIV coinfected macrophages. However, during a low grade infection, autophagy induction increased Mtb replication due to a decreased autophagic flux and acidification of Mtb phagosomes. A general autophagic flux was induced, although not localized to the Mtb phagosomes, thus not inducing a xenophagy (autophagy of intracellular pathogens). Other ways of inducing autophagy or boosting the response in coinfected macrophages might be more beneficial and therefore the effect of efferocytosis was investigated. Uptake of apoptotic neutrophils by coinfected macrophages did not induce autophagy but enhanced the control of Mtb by other means. Upon efferocytosis, the macrophages acquired active myeloperoxidase (MPO) from the neutrophils that suppressed Mtb growth. The coinfected macrophages also produced more ROS after efferocytosis. The inhibition of Mtb growth could thus be mediated by MPO and the increased ROS production either directly or indirectly.

    The possibility to boost the innate immunity could prove to be important during an HIV coinfection, when the adaptive immunity is deficient. In addition to the well-known decline in CD4 T cells during the course of HIV progression, we found that HIV infection of dendritic cells inhibited antigen presentation by suppressing the expression of HLA-DR and co-stimulatory molecules on coinfected dendritic cells. Furthermore, HIV reduced secretion of pro-inflammatory cytokines and suppressed antigen processing through inhibition of autophagy. This impaired antigen presentation in coinfected dendritic cells resulted in a decreased activation and response of Mtb-specific CD4 T cells.

    In conclusion, this thesis shows how HIV can manipulate antigen presentation in Mtb coinfected dendritic cells and subsequently inhibit the adaptive immune response. It also contributes to insights on how efferocytosis of apoptotic neutrophils can boost the innate immune responses during coinfection. Lastly, autophagy induction through mTOR inhibition does not enhance protection against TB. Induction of autophagy should therefore be handled with care, particularly during HIV coinfection. 

    Delarbeten
    1. Autophagy induction targeting mTORC1 enhances Mycobacterium tuberculosis replication in HIV co-infected human macrophages
    Öppna denna publikation i ny flik eller fönster >>Autophagy induction targeting mTORC1 enhances Mycobacterium tuberculosis replication in HIV co-infected human macrophages
    Visa övriga...
    2016 (Engelska)Ingår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, nr 28171Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    To survive and replicate in macrophages Mycobacterium tuberculosis (Mtb) has developed strategies to subvert host defence mechanisms, including autophagy. Autophagy induction has the potential to clear Mtb, but little is known about its effect during controlled tuberculosis and HIV co-infection. Mammalian target of rapamycin complex1 (mTORC1) inhibitors were used to induce autophagy in human macrophages pre-infected with HIV-1(BaL) and infected with a low dose of Mtb (co-infected), or single Mtb infected (single infected). The controlled Mtb infection was disrupted upon mTOR inhibition resulting in increased Mtb replication in a dose-dependent manner which was more pronounced during co-infection. The increased Mtb replication could be explained by the marked reduction in phagosome acidification upon mTOR inhibition. Autophagy stimulation targeting mTORC1 clearly induced a basal autophagy with flux that was unlinked to the subcellular environment of the Mtb vacuoles, which showed a concurrent suppression in acidification and maturation/flux. Overall our findings indicate that mTOR inhibition during Mtb or HIV/Mtb co-infection interferes with phagosomal maturation, thereby supporting mycobacterial growth during low-dose and controlled infection. Therefore pharmacological induction of autophagy through targeting of the canonical mTORC1-pathway should be handled with caution during controlled tuberculosis, since this could have serious consequences for patients with HIV/Mtb co-infection.

    Ort, förlag, år, upplaga, sidor
    NATURE PUBLISHING GROUP, 2016
    Nationell ämneskategori
    Infektionsmedicin
    Identifikatorer
    urn:nbn:se:liu:diva-132355 (URN)10.1038/srep28171 (DOI)000384609100002 ()27302320 (PubMedID)
    Tillgänglig från: 2016-11-12 Skapad: 2016-11-01 Senast uppdaterad: 2019-03-28
    2. HIV Interferes with Mycobacterium tuberculosis Antigen Presentation in Human Dendritic Cells
    Öppna denna publikation i ny flik eller fönster >>HIV Interferes with Mycobacterium tuberculosis Antigen Presentation in Human Dendritic Cells
    Visa övriga...
    2016 (Engelska)Ingår i: American Journal of Pathology, ISSN 0002-9440, E-ISSN 1525-2191, Vol. 186, nr 12, s. 3083-3093Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    HIV coinfection is the most prominent risk factor for progression of Mycobacterium tuberculosis (Mtb) infection into active tuberculosis (TB) disease. The mechanisms behind the increased transition from latent to active TB in coinfected individuals have not been well elucidated at the cellular level. We hypothesized that HIV infection contributes to Mtb pathogenesis by interfering with the dendritic cell (DC) mediated immune control. Mtb-antigen processing and presentation are key events in the immune response against TB. Human immature DCs coinfected with HIV/Mtb had decreased expression of human leukocyte antigen antigen D related and the costimulatory molecules CD40, CD80, and CD86. In addition, Mtb-infected DCs triggered a significant release of the proinflammatory cytokines IL-6, IL-1 beta, and tumor necrosis factor-alpha, whereas coinfected DCs did not. To assess the DC antigen presentation capacity, we measured interferon-gamma from co-cultures of DCs and autologous Mtb antigen-specific CD4(+) T cells. Interferon-gamma release was significantly reduced when purified protein derivative- and Ag85B-specific CD4(+) T cells had been activated with coinfected DCs compared to Mtb-infected DCs, and this effect was attributed to Mtb antigen processing rather than peptide major histocompatibility complex class II loading. Evaluating autophagy as a measure of vesicular processing and maturation further revealed that HIV efficiently blocks initiation of this pathway during coinfection. Overall, our results demonstrate that HIV impairs Mtb antigen presentation in DCs, thereby suppressing an important cell linking innate and adaptive immune response in TB.

    Ort, förlag, år, upplaga, sidor
    ELSEVIER SCIENCE INC, 2016
    Nationell ämneskategori
    Immunologi inom det medicinska området
    Identifikatorer
    urn:nbn:se:liu:diva-133376 (URN)10.1016/j.ajpath.2016.08.003 (DOI)000389103800003 ()27746182 (PubMedID)
    Anmärkning

    Funding Agencies|Swedish Research Council [521-2012-1807, 348-2013-6588]; Swedish Heart-Lung Foundation [2014-0578]

    Tillgänglig från: 2016-12-27 Skapad: 2016-12-22 Senast uppdaterad: 2019-03-28
  • 253.
    Andersson, Anna-Maria
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten.
    Andersson, Blanka
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten.
    Lorell, Christoffer
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten.
    Raffetseder, Johanna
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten.
    Larsson, Marie
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten.
    Blomgran, Robert
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten.
    Autophagy induction targeting mTORC1 enhances Mycobacterium tuberculosis replication in HIV co-infected human macrophages2016Ingår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, nr 28171Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    To survive and replicate in macrophages Mycobacterium tuberculosis (Mtb) has developed strategies to subvert host defence mechanisms, including autophagy. Autophagy induction has the potential to clear Mtb, but little is known about its effect during controlled tuberculosis and HIV co-infection. Mammalian target of rapamycin complex1 (mTORC1) inhibitors were used to induce autophagy in human macrophages pre-infected with HIV-1(BaL) and infected with a low dose of Mtb (co-infected), or single Mtb infected (single infected). The controlled Mtb infection was disrupted upon mTOR inhibition resulting in increased Mtb replication in a dose-dependent manner which was more pronounced during co-infection. The increased Mtb replication could be explained by the marked reduction in phagosome acidification upon mTOR inhibition. Autophagy stimulation targeting mTORC1 clearly induced a basal autophagy with flux that was unlinked to the subcellular environment of the Mtb vacuoles, which showed a concurrent suppression in acidification and maturation/flux. Overall our findings indicate that mTOR inhibition during Mtb or HIV/Mtb co-infection interferes with phagosomal maturation, thereby supporting mycobacterial growth during low-dose and controlled infection. Therefore pharmacological induction of autophagy through targeting of the canonical mTORC1-pathway should be handled with caution during controlled tuberculosis, since this could have serious consequences for patients with HIV/Mtb co-infection.

  • 254.
    Andersson, B.
    et al.
    University of Gothenburg, Sweden.
    Swolin-Eide, D.
    University of Gothenburg, Sweden.
    Kristroem, B.
    Umeå University, Sweden.
    Gelander, L.
    University of Gothenburg, Sweden; Angered Hospital, Sweden.
    Magnusson, Per
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Region Östergötland, Diagnostikcentrum, Klinisk kemi. Linköpings universitet, Medicinska fakulteten.
    Albertsson-Wikland, K.
    University of Gothenburg, Sweden.
    Seasonal variations in vitamin D in relation to growth in short prepubertal children before and during first year growth hormone treatment2015Ingår i: Journal of Endocrinological Investigation, ISSN 0391-4097, E-ISSN 1720-8386, Vol. 38, nr 12, s. 1309-1317Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose This study investigated the relationship between seasonal variations in 25-hydroxyvitamin D (25(OH) D) levels and growth in prepubertal children during both the pretreatment year and the first year of GH treatment. Methods The study included 249 short prepubertal children with a broad range of GH secretion, GH(max) during a 24 h profile median 23; range 1-127 mU/L, 191 boys (mean age +/- SD, 8.6 +/- 2.6 years), 58 girls (7.5 +/- 1.9 years) receiving GH treatment (mean 43 mu g/kg/day; range 17-99 mu g/kg/day). Serum 25(OH) D was measured using an automated IDS-iSYS immunoassay. Results 25(OH) D levels showed seasonal variation, and decreased significantly during GH treatment. 25(OH) D levels at start and first year reduction in 25(OH) D, correlated (-) with the first year growth response during treatment. The degree of GH secretion capacity within our study population of mainly non-GH deficient children and 25(OH) D sufficient (67 +/- 29 nmol/L) had no influence on 25(OH) D levels. Growth during GH treatment were independent of seasonal variations in 25(OH) D. Multiple regression analysis showed that 25(OH) D levels at treatment start, together with auxological data and IGF-binding protein-3(SDS), explained 61 % of the variation in first year gain in height(SDS). Conclusion 25(OH) D levels were associated with first year growth response to GH and may be a useful contribution to future growth prediction models.

  • 255.
    Andersson, Bengt-Åke
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Department of Laboratory Medicine, Region Jönköping County.
    Circulating Biomarkers in Patients with Head and Neck Cancer and the Influence of Cigarette Smoking2019Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [sv]

    Huvud- och halscancer (HH-cancer) innefattar tumörer belägna i huvud och halsområdet. Tobaksrökning ökar risken dramatiskt för olika sjukdomar. Knappt hälften av rökande patienter dör i de av rökning orsakade sjukdomarna. Cancer är orsaken till en tredjedel av de rökrelaterade dödsfallen av vilka HH-cancer är en. En andel av patienterna med HH-cancer dör på grund av att tumören varit för stor redan vid diagnos eller att tumören har spridit sig till övriga delar av kroppen. Men för många patienter är det mycket oklart vad som bestämmer behandlingsresultatet. Tumörerna är till synes lika och behandlingen standardiserad.

    Målet med denna doktorsavhandling var att undersöka billiga och lättillgängliga biologiska markörer som kan indikera risk för att drabbas av HH-cancer eller om dessa markörer kan förutspå behandlingsresultat och överlevnad hos de drabbade patienterna. Dessutom undersöktes hur cigarettrökning påverkade nivåerna av markörerna.

    I studie I, undersöktes om molekyler i blodet (biomarkörer), förknippade med immunförsvaret, kunde förutsäga överlevnaden hos HH-cancerpatienter. I jämförelse med friska individer sågs högre nivåer av molekylerna TNF-α och CRP hos patienterna och dessa förhöjningar var relaterade till förkortad överlevnad hos patienterna.

    I studie II, var målet att undersöka om variationer i gener, förknippade med immunförsvaret, celldelning, celldöd eller enzymer som reparerar skadat DNA, kunde påverka risk och prognos för HH-cancer. Resultatet visade framför allt att små ärftliga variationer i gener som reglerar immunförsvaret kunde påverkade risk för HH-cancer, risk för återfall i sjukdomen samt överlevnaden hos patienterna.

    I studie III, jämfördes inflammatoriska och immunförknippade biomarkörer som kunde påverkas av cigarettrökning mellan friska rökare och friska icke-rökare. Rökarna hade en högre inflammatorisk aktivitet med högre nivåer av totalt antal vita blodkroppar och tre av dess olika undergrupper (neutrofiler, monocyter och lymfocyter) samt av biomarköerna CRP, MCP-1 och IFN-γ. De funna lägre nivåerna av den cancerförknippade biomarkören miR-21 och högre nivåer av den förmodat skyddande biomarkören IFN-γ hos rökarna, kan vara ett uttryck för kroppens försvar mot den cancerframkallade cigarettröken. Ärftliga faktorer tycks kunna påverka de högre nivåerna av IFN-γ hos rökarna, eftersom ökningen endast fanns i en grupp individer med viss typ av genetisk uppsättning.

    Eftersom både rökning och HH-cancer ger upphov till inflammation, undersöktes i studie IV hur dessa var för sig påverkade nivåerna av inflammatoriska biomarkörer. Detta för en bättre förståelse hur immunförsvaret reagerar på rökning och HH-cancer. Jämförelser av inflammatoriska markörer från rökande och icke-rökande patienter, och rökande och ickerökande friska individer genomfördes. Rökning hade störst påverkan på de högre nivåerna av totalt antal vita blodkroppar och signalmolekylerna MCP-1 och IFN-γ. HH-cancer hade störst påverkan på högre nivåerna av neutrofiler, monocyter, kvoten mellan neutrofiler och lymfocyter, CRP, MIP-1b och TNF-α.

    Uppkomsten av HH-cancer, behandlingsresultat och överlevnad bland patienterna kan antas inte bara bero på tumörens egenskaper, utan även på värdfaktorer hos patienten. Dessa kan vara ärftliga, eller bero på reglering av gener eller tumörens omgivning av t.ex. immunceller och inflammatoriska molekyler och hur dessa samverkar med miljöfaktorer som tobaksrökning. I denna avhandling presenteras biomarkörer som kan bidra med information om risk och prognos för HH-cancer samt hur tobaksrökning påverkar dessa markörer.

    Delarbeten
    1. Plasma tumor necrosis factor-α and C-reactive protein as biomarker for survival in head and neck squamous cell carcinoma.
    Öppna denna publikation i ny flik eller fönster >>Plasma tumor necrosis factor-α and C-reactive protein as biomarker for survival in head and neck squamous cell carcinoma.
    Visa övriga...
    2014 (Engelska)Ingår i: Journal of Cancer Research and Clinical Oncology, ISSN 0171-5216, E-ISSN 1432-1335, Vol. 140, nr 3, s. 515-519Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    PURPOSE: Tumor TNM staging is the main basis for prognosis and treatment decision for head and neck squamous cell carcinoma (HNSCC) despite significant heterogeneity in terms of outcome among patients with the same clinical stage. In this study, a possible role of plasma interleukin-2 (IL-2), interleukin-6 (IL-6), granulocyte-macrophage colony-stimulating factor (GM-CSF), tumor necrosis factor-α (TNF-α) and C-reactive protein (CRP) as biomarkers for survival of HNSCC patients was investigated.

    METHODS: In this prospective study, plasma levels of IL-2, IL-6, GM-CSF, TNF-α and CRP in patients (n = 100) and controls (n = 48) were analyzed.

    RESULTS: Significantly elevated levels of CRP and TNF-α (p < 0.001) were found in the patients. Combination of upregulated CRP and TNF-α in the patient plasma was significantly related to shorter patient survival, independent of clinical stage.

    CONCLUSIONS: Our findings indicate that CRP and TNF-α might be suitable as biomarkers in combination with tumor TNM staging for predicting survival and individualized treatment of HNSCC patients. Plasma CRP and TNF-α analysis are simple, rapid, cost effective and suitable for clinical practice.

    Nyckelord
    Head and neck squamous cell carcinoma, Biomarkers, Survival, CRP, TNF-α
    Nationell ämneskategori
    Cancer och onkologi
    Identifikatorer
    urn:nbn:se:liu:diva-162092 (URN)10.1007/s00432-014-1592-8 (DOI)24481866 (PubMedID)
    Tillgänglig från: 2019-11-19 Skapad: 2019-11-19 Senast uppdaterad: 2019-11-19Bibliografiskt granskad
    2. Single-Nucleotide Polymorphisms and Cancer Risk, Tumor Recurrence, or Survival of Head and Neck Cancer Patients
    Öppna denna publikation i ny flik eller fönster >>Single-Nucleotide Polymorphisms and Cancer Risk, Tumor Recurrence, or Survival of Head and Neck Cancer Patients
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    2017 (Engelska)Ingår i: Oncology, ISSN 0030-2414, E-ISSN 1423-0232, Vol. 92, nr 3, s. 161-169Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Objective: This paper aims at studying the influence of single-nucleotide polymorphisms (SNPs) on cancer risk, tumor recurrence, and survival in head and neck (Hamp;N) cancer patients. Methods: A total of 45 SNPs in 41 genes were investigated. A total of 174 Caucasian Hamp;N cancer patients and 245 healthy blood donors were enrolled in the study. Results: Ten SNPs were associated with Hamp;N cancer risk, but the identified SNPs differed among males and females. Some of the SNPs were related to immune response genes. The immune response gene SNPs were also related to survival. In particular, we noted that the tumor necrosis factor alpha (TNF alpha) rs1800629 could have an influence on cancer risk; tumor recurrence as well as survival. Conclusion: Genetic variation of the TNFa rs1800629 might be useful as a biomarker in clinical decision-making since it was found to be related to cancer risk, tumor recurrence, and survival of Hamp;N cancer patients. (C) 2016 S. Karger AG, Basel

    Ort, förlag, år, upplaga, sidor
    KARGER, 2017
    Nyckelord
    Head and neck cancer; Tumor recurrence; Survival time; Single-nucleotide polymorphisms
    Nationell ämneskategori
    Cancer och onkologi
    Identifikatorer
    urn:nbn:se:liu:diva-136217 (URN)10.1159/000452278 (DOI)000395366800005 ()27997918 (PubMedID)
    Anmärkning

    Funding Agencies|Jonkoping Clinical Cancer Research Foundation; Futurum; FORSS; Swedish Laryngeal Foundation

    Tillgänglig från: 2017-03-31 Skapad: 2017-03-31 Senast uppdaterad: 2019-11-19
    3. Cigarette smoking affects microRNAs and inflammatory biomarkers in healthy individuals and an association to single nucleotide polymorphisms is indicated
    Öppna denna publikation i ny flik eller fönster >>Cigarette smoking affects microRNAs and inflammatory biomarkers in healthy individuals and an association to single nucleotide polymorphisms is indicated
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    2019 (Engelska)Ingår i: Biomarkers, ISSN 1354-750X, E-ISSN 1366-5804, Vol. 24, nr 2, s. 180-185Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Background: Cigarette smoke induces inflammation and remodels immune response. Genetic and epigenetic alterations might be involved in the pathogenesis of smoking related diseases. In this study, we investigated the effect of smoking on systemic inflammation biomarkers and epigenetic changes at microRNA (miRNA) expression level. We also examined if the levels of inflammatory biomarkers were associated with selected single nucleotide polymorphisms (SNPs). Method: From 39 smokers and 101 non-smokers, levels of total white blood cells (WBCs) and its subpopulations, plasma cytokines/chemokines/proteins and miRNAs were analysed. For three biomarkers, C-reactive protein (CRP), MCP-1 and IFN-gamma that were affected by smoking, the influence of SNPs was analyzed. Result: Elevated levels of total WBCs, neutrophils, monocytes, lymphocytes, CRP, MCP-1, IFN-gamma and lower levels of miR-21 were detected in smokers. The elevated levels of IFN-gamma in smokers was only statistically significantly associated with rs2069705 AG/GG SNP-genotype. Conclusions: A lower level of oncomir miRNA-21 and a higher level of immune modelling cytokine IFN-gamma detected in smokers could be a protective immune response to cigarette smoke. The higher level of IFN-gamma in smokers with a specific SNP genotype also suggests that a genetic interaction with smoking might predict the pathobiology of smoking related disease.

    Ort, förlag, år, upplaga, sidor
    TAYLOR & FRANCIS LTD, 2019
    Nyckelord
    Immune respons; single nucleotide polymorphism; microRNA; smoking related diseases; cigarette smoking
    Nationell ämneskategori
    Reumatologi och inflammation
    Identifikatorer
    urn:nbn:se:liu:diva-157272 (URN)10.1080/1354750X.2018.1539764 (DOI)000465158700011 ()30375257 (PubMedID)
    Anmärkning

    Funding Agencies|Forskningsradet i Sydostra Sverige; Futurum-Academy of HealthCare at Jonkoping County Council [477461, 490031, 669631]; Foundation of Clinical Cancer Research in Jo nkoping [110426-1]; Medical Research Council of Southeast Sweden (FORSS) [567001]

    Tillgänglig från: 2019-06-12 Skapad: 2019-06-12 Senast uppdaterad: 2019-11-19
    4. Impact of Cigarette Smoking and Head and Neck Squamous Cell Carcinoma on Circulating Inflammatory Biomarkers
    Öppna denna publikation i ny flik eller fönster >>Impact of Cigarette Smoking and Head and Neck Squamous Cell Carcinoma on Circulating Inflammatory Biomarkers
    Visa övriga...
    2019 (Engelska)Ingår i: Oncology, ISSN 0030-2414, E-ISSN 1423-0232, s. 1-6Artikel i tidskrift (Refereegranskat) Epub ahead of print
    Abstract [en]

    INTRODUCTION: Smoking induces inflammation and an immune response. A cancer-related inflammatory response has been seen in smoking and nonsmoking head and neck squamous cell carcinoma (HNSCC) patients.

    OBJECTIVES: The aim of this study was to analyze the possible separated effects of smoking or HNSCC on 18 inflammatory or immune regulatory biomarkers.

    METHODS: Fifty-one nonsmoking and 36 smoking pretreated HNSCC patients and 101 nonsmoking and 39 smoking controls were included in this study. The levels of 18 inflammatory or immune regulatory biomarkers were analyzed. A multivariable linear regression model was used to predict the impact of smoking and HNSCC on the levels of the biomarkers.

    RESULTS: Smoking had the highest impact on total WBC, IFN-γ, and MCP-1 levels. The highest impact of HNSCC was found on neutrophils, neutrophil-to-lymphocyte ratio, HsCRP, MIP-1b, and TNF-α levels.

    CONCLUSION: Identifying HNSCC or smoking-related inflammatory biomarkers might contribute to the understanding of the immune response in HNSCC patients. This study could provide information of inflammatory biomarkers in HNSCC patients.

    Nyckelord
    Biomarkers, Head and neck squamous cell carcinoma, Immune response, Inflammation, Smoking
    Nationell ämneskategori
    Cancer och onkologi
    Identifikatorer
    urn:nbn:se:liu:diva-162093 (URN)10.1159/000502651 (DOI)31437849 (PubMedID)
    Tillgänglig från: 2019-11-19 Skapad: 2019-11-19 Senast uppdaterad: 2019-11-19Bibliografiskt granskad
  • 256.
    Andersson, Bengt-Åke
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för medicin och hälsa. Department of Laboratory Medicine, Region Jönköping County.
    Löfgren, Sture
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten. Department of Laboratory Medicine, Region Jönköping County.
    Lewin, Freddi
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten. Department of Oncology, Region Jönköping County.
    Nilsson, Mats
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten. Futurum, Academy for Health and Care, Jönköping.
    Laytragoon-Lewin, Nongnit
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Medicinska fakulteten. Department of Laboratory Medicine, Region Jönköping County.
    Impact of Cigarette Smoking and Head and Neck Squamous Cell Carcinoma on Circulating Inflammatory Biomarkers2019Ingår i: Oncology, ISSN 0030-2414, E-ISSN 1423-0232, s. 1-6Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    INTRODUCTION: Smoking induces inflammation and an immune response. A cancer-related inflammatory response has been seen in smoking and nonsmoking head and neck squamous cell carcinoma (HNSCC) patients.

    OBJECTIVES: The aim of this study was to analyze the possible separated effects of smoking or HNSCC on 18 inflammatory or immune regulatory biomarkers.

    METHODS: Fifty-one nonsmoking and 36 smoking pretreated HNSCC patients and 101 nonsmoking and 39 smoking controls were included in this study. The levels of 18 inflammatory or immune regulatory biomarkers were analyzed. A multivariable linear regression model was used to predict the impact of smoking and HNSCC on the levels of the biomarkers.

    RESULTS: Smoking had the highest impact on total WBC, IFN-γ, and MCP-1 levels. The highest impact of HNSCC was found on neutrophils, neutrophil-to-lymphocyte ratio, HsCRP, MIP-1b, and TNF-α levels.

    CONCLUSION: Identifying HNSCC or smoking-related inflammatory biomarkers might contribute to the understanding of the immune response in HNSCC patients. This study could provide information of inflammatory biomarkers in HNSCC patients.

  • 257.
    Andersson, Bengt-Åke
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Sayardoust, Shariel
    Inst Postgrad Dent Educ, Sweden.
    Lofgren, Sture
    Ryhov Cty Hosp, Sweden.
    Rutqvist, Lars Erik
    Swedish Match AB, Sweden.
    Lewin, Nongnit
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Cigarette smoking affects microRNAs and inflammatory biomarkers in healthy individuals and an association to single nucleotide polymorphisms is indicated2019Ingår i: Biomarkers, ISSN 1354-750X, E-ISSN 1366-5804, Vol. 24, nr 2, s. 180-185Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Cigarette smoke induces inflammation and remodels immune response. Genetic and epigenetic alterations might be involved in the pathogenesis of smoking related diseases. In this study, we investigated the effect of smoking on systemic inflammation biomarkers and epigenetic changes at microRNA (miRNA) expression level. We also examined if the levels of inflammatory biomarkers were associated with selected single nucleotide polymorphisms (SNPs). Method: From 39 smokers and 101 non-smokers, levels of total white blood cells (WBCs) and its subpopulations, plasma cytokines/chemokines/proteins and miRNAs were analysed. For three biomarkers, C-reactive protein (CRP), MCP-1 and IFN-gamma that were affected by smoking, the influence of SNPs was analyzed. Result: Elevated levels of total WBCs, neutrophils, monocytes, lymphocytes, CRP, MCP-1, IFN-gamma and lower levels of miR-21 were detected in smokers. The elevated levels of IFN-gamma in smokers was only statistically significantly associated with rs2069705 AG/GG SNP-genotype. Conclusions: A lower level of oncomir miRNA-21 and a higher level of immune modelling cytokine IFN-gamma detected in smokers could be a protective immune response to cigarette smoke. The higher level of IFN-gamma in smokers with a specific SNP genotype also suggests that a genetic interaction with smoking might predict the pathobiology of smoking related disease.

  • 258.
    Andersson, Bjorn
    et al.
    University of Gothenburg, Sweden.
    Swolin-Eide, Diana
    University of Gothenburg, Sweden.
    Magnusson, Per
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk kemi.
    Albertsson-Wikland, Kerstin
    University of Gothenburg, Sweden.
    Short-term changes in bone formation markers following growth hormone (GH) treatment in short prepubertal children with a broad range of GH secretion2015Ingår i: Clinical Endocrinology, ISSN 0300-0664, E-ISSN 1365-2265, Vol. 82, nr 1, s. 91-99Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    ObjectivesGrowth hormone (GH) promotes longitudinal growth and bone modelling/remodelling. This study investigated the relationship between levels of bone formation markers and growth during GH treatment in prepubertal children with widely ranging GH secretion levels. MethodsThe study group comprised 113 short prepubertal children (mean ageSD, 937213years; 99 boys) on GH treatment (330 +/- 006g/kg/day) for 1year. Blood samples were taken at baseline and 1 and 2weeks, 1 and 3months, and 1year after treatment start. Intact amino-terminal propeptide of type I procollagen (PINP), bone-specific alkaline phosphatase (BALP) and osteocalcin were measured using an automated IDS-iSYS immunoassay system. ResultsIntact amino-terminal propeptide of type I procollagen (PINP), BALP and osteocalcin, increased in the short-term during GH treatment. PINP after 1week (P=000077), and BALP and osteocalcin after 1month (Pless than00001 and P=00043, respectively). PINP levels at 1 and 3months correlated positively, and osteocalcin levels at 1week and percentage change after 1month correlated negatively, with first year growth response. No significant correlations were found between BALP and first year growth. Multiple regression analysis showed that bone marker levels together with auxological data and insulin-like growth factor binding protein-3 explained the variation in first year growth response to 36% at start, 32% after 2weeks and 48% at 3months. ConclusionShort-term increases in levels of the bone formation markers PINP, BALP and osteocalcin showed different temporal patterns, but all correlated with first year growth response during GH treatment. These markers may be a useful addition to existing prediction models for growth response.

  • 259.
    Andersson, Björn
    et al.
    Institution of Clinical Sciences/Pediatrics, Umeå University, Umeå, Sweden.
    Swolin-Eide, Diana
    Göteborg Pediatric Growth Research Center (GP-GRC), Department of Pediatrics, Institute of Clinical Sciences, The Sahlgrenska Academy at the University of Gothenburg, Göteborg, Sweden.
    Magnusson, Per
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk kemi.
    Albertsson-Wikland, Kerstin
    Department of Physiology/Division of Endocrinology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Göteborg, Sweden.
    Vitamin D status in children over three decades – do children get enough vitamin D?2016Ingår i: Bone Reports, ISSN 2352-1872, Vol. 5, s. 150-152Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Vitamin D is a key player in the endocrine regulation of calcium and phosphate metabolism and plays a pivotal role in the acquisition of bone mass during childhood. This study investigated long-term data of vitamin D levels in children and adolescents between 1 and 18 years of age. Serum 25-hydroxyvitamin D (25(OH)D) was analyzed between 1982 and 2013 in 2048 Swedish Caucasian children (mean age ± SD, 8.59 ± 3.68 years; 1197 boys). Overall, 704 (34%) children had below recommended levels of 50 nmol/L; however, only 63 (3%) had levels below 25 nmol/L, i.e., vitamin D deficiency. No trend for decreased vitamin D levels over time was found in this population, with median 25(OH)D levels of 58.4 nmol/L, minimum–maximum 5.0–159.3 nmol/L. Younger children, independent of gender, had significantly higher levels 25(OH)D.

  • 260.
    Andersson, Charlotta
    et al.
    Region Östergötland, Diagnostikcentrum, Fysiologiska kliniken ViN. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Kihlberg, Johan
    Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping.
    Ebbers, Tino
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Fysiologiska kliniken US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Lindström, Lena
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten.
    Carlhäll, Carljohan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Fysiologiska kliniken US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Engvall, Jan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Fysiologiska kliniken US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Phase-contrast MRI volume flow - a comparison of breath held and navigator based acquisitions2016Ingår i: BMC Medical Imaging, ISSN 1471-2342, E-ISSN 1471-2342, Vol. 16, nr 26Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Magnetic Resonance Imaging (MRI) 2D phase-contrast flow measurement has been regarded as the gold standard in blood flow measurements and can be performed with free breathing or breath held techniques. We hypothesized that the accuracy of flow measurements obtained with segmented phase-contrast during breath holding, and in particular higher number of k-space segments, would be non-inferior compared to navigator phase-contrast. Volumes obtained from anatomic segmentation of cine MRI and Doppler echocardiography were used for additional reference. Methods: Forty patients, five women and 35 men, mean age 65 years (range 53-80), were randomly selected and consented to the study. All underwent EKG-gated cardiac MRI including breath hold cine, navigator based free-breathing phase-contrast MRI and breath hold phase-contrast MRI using k-space segmentation factors 3 and 5, as well as transthoracic echocardiography within 2 days. Results: In navigator based free-breathing phase-contrast flow, mean stroke volume and cardiac output were 79.7 +/- 17.1 ml and 5071 +/- 1192 ml/min, respectively. The duration of the acquisition was 50 +/- 6 s. With k-space segmentation factor 3, the corresponding values were 77.7 ml +/- 17.5 ml and 4979 +/- 1211 ml/min (p = 0.15 vs navigator). The duration of the breath hold was 17 +/- 2 s. K-space segmentation factor 5 gave mean stroke volume 77.9 +/- 16.4 ml, cardiac output 5142 +/- 1197 ml/min (p = 0.33 vs navigator), and breath hold time 11 +/- 1 s. Anatomical segmentation of cine gave mean stroke volume and cardiac output 91.2 +/- 20.8 ml and 5963 +/- 1452 ml/min, respectively. Echocardiography was reliable in 20 of the 40 patients. The mean diameter of the left ventricular outflow tract was 20.7 +/- 1.5 mm, stroke volume 78.3 ml +/- 15.2 ml and cardiac output 5164 +/- 1249 ml/min. Conclusions: In forty consecutive patients with coronary heart disease, breath holding and segmented k-space sampling techniques for phase-contrast flow produced stroke volumes and cardiac outputs similar to those obtained with free-breathing navigator based phase-contrast MRI, using less time. The values obtained agreed fairly well with Doppler echocardiography while there was a larger difference when compared with anatomical volume determinations using SSFP (steady state free precession) cine MRI.

  • 261.
    Andersson, Christoffer R.
    et al.
    Örebro University, Sweden.
    Bergquist, Jonas
    Uppsala University, Sweden.
    Theodorsson, Elvar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk kemi.
    Ström, Jakob
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk kemi. Örebro University, Sweden.
    Comparisons between commercial salivary testosterone enzyme-linked immunosorbent assay kits2017Ingår i: Scandinavian Journal of Clinical and Laboratory Investigation, ISSN 0036-5513, E-ISSN 1502-7686, Vol. 77, nr 8, s. 582-586Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Introduction: Measuring testosterone concentrations is of interest both in clinical situations and for research, the latter expanding rapidly during recent years. An increased demand for convenient methods has prompted a number of companies to develop enzyme-linked immunosorbent assay (ELISA) kits to measure testosterone concentrations in saliva. However, the inter-comparability of kits from different manufacturers have yet to be determined. Aim of study: The aim of this study was to compare commercially available ELISA kits from four different manufacturers (Salimetrics, IBL, DRG and Demeditec). Methods: Saliva was collected from 50 participants (25 men and 25 women). Each sample was analysed by the four ELISA kits. Results: The correlations between the ELISA kits from Demeditec, DRG and Salimetrics were moderate to high with r-values amp;gt;.77; however, proportional errors between the methods calls for caution. The ELISA kit from IBL malfunctioned and no results from this kit was obtained. Conclusions: Results from studies using the ELISA kits from Demeditec, DRG and Salimetrics are generally comparable; however, translation using the formulae presented in the current study could increase the accuracy of these comparisons.

  • 262.
    Andersson, Ellen
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Kirurgiska kliniken ViN.
    Albertsson, Maria
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Onkologiska kliniken US.
    Holmqvist, Annica
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Onkologiska kliniken US. Linköpings universitet, Medicinska fakulteten.
    GRACE: Geriatric patients tReated with Avastin in CRC multiple linEs2017Ingår i: Clinical Practice, ISSN 2044-9038, E-ISSN 2044-9046, Vol. 14, nr 3, s. 175-182Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Continuous treatment with bevacizumab in elderly patients with mCRC: A phase IV prospective, open-label, single-arm trial to evaluate outcomes and safety with continuous bevacizumab treatment in combination with chemotherapy over disease progression.

  • 263.
    Andersson, Fredrik
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för hälso- och sjukvårdsanalys. Linköpings universitet, Medicinska fakulteten. Ferring Pharmaceut AS, Denmark.
    Anderson, Peter
    Adelphi Real World, England.
    Holm-Larsen, Tove
    Pharma Evidence, Denmark.
    Piercy, James
    Adelphi Real World, England.
    Everaert, Karel
    Ghent University Hospital, Belgium.
    Holbrook, Tim
    Adelphi Real World, England.
    Assessing the impact of nocturia on health-related quality-of-life and utility: results of an observational survey in adults2016Ingår i: JOURNAL OF MEDICAL ECONOMICS, ISSN 1369-6998, Vol. 19, nr 12, s. 1200-1206Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background and aim: The impact of nocturia (getting up at night to void) on health-related quality-of-life (HRQoL) is often under-estimated. This study investigated the relative burden in terms of HRQoL and utilities of nocturia in a real-world setting. Methods: Patient data were collected from two surveys: a nocturia-specific, cross-sectional survey of physicians and their patients (DSP), and a general UK population health survey (HSFE). Utilities (EQ-5D-5L), productivity (Work Productivity and Activity Index), and the impact of nocturia symptoms (Nocturia Impact Diary and Overactive Bladder Questionnaires) were assessed against the number of voids. A robust linear regression model with propensity score weights was used to control for confounding factors in estimating utilities. Results: Physician-recorded data were available from 8,738 patients across the US, Germany, Spain, France, and the UK; of these, 5,335 (61%) included patient-reported outcomes. In total, 6,302 controls were drawn from the two surveys and compared to 1,104 nocturia patients. Deterioration of HRQoL was associated with increasing number of night-time voids (pamp;lt;0.0001). In particular, significant differences were observed between 0-1 and 2 voids (pamp;lt;0.001). The regression model demonstrated that nocturia (amp;gt;= 2 per night) is associated with a modest but significant deterioration in utility of 0.0134 (pamp;lt;0.05). Limitations: The cause of nocturia is multifactorial and the mostly elderly patients may have several concomitant diseases. The authors tried to adjust for the most common ones, but there may be diseases or unknown relationships not included. Conclusions: Nocturia negatively affected HRQoL and patient utility. A clear effect is seen already at two voids per night. Every effort should, therefore, be made to reduce nocturia below the bother threshold of two voids per night.

  • 264.
    Andersson, Frieda
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Hjelm, Katarina
    Linköpings universitet, Institutionen för samhälls- och välfärdsstudier, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Patient safety in nursing homes in Sweden: nurses´views on safety and their role2017Ingår i: Journal of Health Services Research and Policy, ISSN 1355-8196, E-ISSN 1758-1060, Vol. 22, nr 4, s. 204-210Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: Knowledge about patient safety in nursing homes is limited. The aim of this study was to describe what patient safety means to nurses working in nursing homes for the elderly and how these nurses address patient safety. Method: Qualitative study of semi-structured interviews with 15 nurses aged 27-62 years. Qualitative content analysis was applied. Results: Nurses describe the meaning of patient safety in terms of proper care and treatment, and a sense of security. Based on nurses' description of patient safety, several factors were identified as prerequisites to achieve safe health care: competence; clear information transfer between health care organizations; continuity of care and appropriate environment. Barriers to patient safety were described as lack of sufficient resources; lack of communication and negative attitudes to incident reporting. To a great extent, nurses' work for patient safety consists of efforts to compensate for defects and ensure good health care in their daily work, since work with patient safety is not a management priority. Conclusion: Patient safety needs to be clarified and prioritized in nursing homes, and there is a need to understand nurses' role among other care givers and the need for shared routines among care givers

  • 265.
    Andersson Hagiwara, Magnus
    et al.
    University of Boras, Sweden.
    Nilsson, Lena
    Region Östergötland, Sinnescentrum, Anestesi- och intensivvårdskliniken VIN. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning.
    Stromsoe, Anneli
    Malardalens Hogskola, Sweden.
    Axelsson, Christer
    University of Boras, Sweden.
    Kangstrom, Anna
    University of Boras, Sweden.
    Herlitz, Johan
    University of Boras, Sweden.
    Patient safety and patient assessment in pre-hospital care: a study protocol2016Ingår i: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine, ISSN 1757-7241, E-ISSN 1757-7241, Vol. 24, nr 14Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Patient safety issues in pre-hospital care are poorly investigated. The aim of the planned study is to survey patient safety problems in pre-hospital care in Sweden. Methods/Design: The study is a retro-perspective structured medical record review based on the use of 11 screening criteria. Two instruments for structured medical record review are used: a trigger tool instrument designed for pre-hospital care and a newly development instrument designed to compare the pre-hospital assessment with the final hospital assessment. Three different ambulance organisations are participating in the study. Every month, one rater in each organisation randomly collects 30 medical records for review. With guidance from the review instrument, he/she independently reviews the record. Every month, the review team meet for a discussion of problematic reviews. The results will be analysed with descriptive statistics and logistic regression. Discussion: The findings will make an important contribution to knowledge about patient safety issues in prehospital care.

  • 266.
    Andersson, Henrik
    et al.
    Linköpings universitet, Medicinska fakulteten. Östergötlands Läns Landsting, Sinnescentrum, Anestesi- och intensivvårdskliniken US. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning.
    Björnström-Karlsson, Karin
    Region Östergötland, Sinnescentrum, Anestesi- och intensivvårdskliniken US. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten.
    Eintrei, Christina
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Sinnescentrum, Anestesi- och intensivvårdskliniken US.
    Sundqvist, Tommy
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Medicinska fakulteten.
    Orexin A Phosphorylates the gamma-Aminobutyric Acid Type A Receptor beta(2) Subunit on a Serine Residue and Changes the Surface Expression of the Receptor in SH-SY5Y Cells Exposed to Propofol2015Ingår i: Journal of Neuroscience Research, ISSN 0360-4012, E-ISSN 1097-4547, Vol. 93, nr 11, s. 1748-1755Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Propofol activates the gamma-aminobutyric acid type A receptor (GABA(A)R) and causes a reversible neurite retraction, leaving a thin, thread-like structure behind; it also reverses the transport of vesicles in rat cortical neurons. The awakening peptide orexin A (OA) inhibits this retraction via phospholipase D (PLD) and protein kinase CE (PKCE). The human SH-SY5Y cells express both GABA(A)Rs and orexin 1 and 2 receptors. These cells are used to examine the interaction between OA and the GABAAR. The effects of OA are studied with flow cytometry and immunoblotting. This study shows that OA stimulates phosphorylation on the serine residues of the GABA(A)R beta(2) subunit and that the phosphorylation is caused by the activation of PLD and PKCE. OA administration followed by propofol reduces the cell surface expression of the GABA(A)R, whereas propofol stimulation before OA increases the surface expression. The GABA(A)R beta(2) subunit is important for receptor recirculation, and the effect of OA on propofol-stimulated cells may be due to a disturbed recirculation of the GABA(A)R. (C) 2015 Wiley Periodicals, Inc.

  • 267.
    Andersson, Johanna
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten.
    Wiström, Ulrica
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten.
    Ta tag i min hand, hjälp mig ut: Sjuksköterskors erfarenheter av stödjande samtal inom psykiatrisk öppenvård2017Självständigt arbete på avancerad nivå (magisterexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    I Sverige lever mellan 20- 40 procent av befolkningen med en psykisk ohälsa. Behandlingen av psykisk ohälsa, utifrån en humanistisk människosyn, inriktar sig på en hälsofrämjande process genom att stödja och stärka individen genom stödjande samtal.

    Syfte; Syftet med denna studie var att beskriva sjuksköterskors erfarenheter av stödjande samtal inom psykiatrisk öppenvård.

    Metod; En kvalitativ studie genomfördes där data samlades in med hjälp av semistrukturerade intervjuer av sjuksköterskor inom psykiatrisk öppenvård. Data analyserades med hjälp av en konventionell innehållsanalys. I studien inkluderades totalt 12 sjuksköterskor.

    Resultat; Stödjande samtal beskrevs av sjuksköterskorna som en viktig och bärande del i relationen mellan sjuksköterska och patient inom psykiatrisk vård. Arbetslivserfarenhet och tillgänglighet beskrevs som betydande faktorer för stödjande samtal.

    Konklusion; Det fanns en upplevd otydlighet av innehåll och mål med stödjande samtal hos sjuksköterskorna. Otydliga riktlinjer för stödjande samtal kan leda till att sjuksköterskorna blir stressade. Rutiner och struktur är viktiga faktorer och det kan medföra att sjuksköterskorna blir mer stresståliga och finner en ökad trygghet i att utföra stödjande samtal.

  • 268.
    Andersson, Magnus
    et al.
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Mekanisk värmeteori och strömningslära. Linköpings universitet, Tekniska fakulteten.
    Ebbers, Tino
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Fysiologiska kliniken US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Karlsson, Matts
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Mekanisk värmeteori och strömningslära. Linköpings universitet, Tekniska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Characterization and estimation of turbulence-related wall shear stress in patient-specific pulsatile blood flow2019Ingår i: Journal of Biomechanics, ISSN 0021-9290, E-ISSN 1873-2380, Vol. 85, s. 108-117Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Disturbed, turbulent-like blood flow promotes chaotic wall shear stress (WSS) environments, impairing essential endothelial functions and increasing the susceptibility and progression of vascular diseases. These flow characteristics are today frequently detected at various anatomical, lesion and intervention-related sites, while their role as a pathological determinant is less understood. To present-day, numerous WSS-based descriptors have been proposed to characterize the spatiotemporal nature of the WSS disturbances, however, without differentiation between physiological laminar oscillations and turbulence-related WSS (tWSS) fluctuations. Also, much attention has been focused on magnetic resonance (MR) WSS estimations, so far with limited success; promoting the need of a near-wall surrogate marker. In this study, a new approach is explored to characterize the tWSS, by taking advantage of the tensor characteristics of the fluctuating WSS correlations, providing both a magnitude and an anisotropy measure of the disturbances. These parameters were studied in two patient-specific coarctation models (sever and mild), using large eddy simulations, and correlated against near-wall reciprocal Reynolds stress parameters. Collectively, results showed distinct regions of differing tWSS characteristics, features which were sensitive to changes in flow conditions. Generally, the post-stenotic tWSS was governed by near axisymmetric fluctuations, findings that where not consistent with conventional WSS disturbance predictors. At the 2-3 mm wall-offset range, a strong linear correlation was found between tWSS magnitude and near-wall turbulence kinetic energy (TKE), in contrast to the anisotropy indices, suggesting that MR-measured TKE can be used to assess elevated tWSS regions while tWSS anisotropy estimates request well-resolved simulation methods. (C) 2019 Elsevier Ltd. All rights reserved.

  • 269.
    Andersson, Magnus
    et al.
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Mekanisk värmeteori och strömningslära. Linköpings universitet, Tekniska fakulteten. Swedish E Science Research Centre SeRC, Sweden.
    Lantz, Jonas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Swedish E Science Research Centre SeRC, Sweden.
    Ebbers, Tino
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Fysiologiska kliniken US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Swedish E Science Research Centre SeRC, Sweden.
    Karlsson, Matts
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Mekanisk värmeteori och strömningslära. Linköpings universitet, Tekniska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Swedish E Science Research Centre SeRC, Sweden.
    Correction: Quantitative Assessment of Turbulence and Flow Eccentricity in an Aortic Coarctation: Impact of Virtual Interventions (vol 6, pg 281, 2015)2015Ingår i: Cardiovascular Engineering and Technology, ISSN 1869-408X, E-ISSN 1869-4098, Vol. 6, nr 4, s. 577-589Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Turbulence and flow eccentricity can be measured by magnetic resonance imaging (MRI) and may play an important role in the pathogenesis of numerous cardiovascular diseases. In the present study, we propose quantitative techniques to assess turbulent kinetic energy (TKE) and flow eccentricity that could assist in the evaluation and treatment of stenotic severities. These hemodynamic parameters were studied in a pre-treated aortic coarctation (CoA) and after several virtual interventions using computational fluid dynamics (CFD), to demonstrate the effect of different dilatation options on the flow field. Patient-specific geometry and flow conditions were derived from MRI data. The unsteady pulsatile flow was resolved by large eddy simulation (LES) including non-Newtonian blood rheology. Results showed an inverse asymptotic relationship between the total amount of TKE and degree of dilatation of the stenosis, where the pre-stenotic hypoplastic segment may limit the possible improvement by treating the CoA alone. Spatiotem-poral maps of TKE and flow eccentricity could be linked to the characteristics of the post-stenotic jet, showing a versatile response between the CoA dilatations. By including these flow markers into a combined MRI-CFD intervention framework, CoA therapy has not only the possibility to produce predictions via simulation, but can also be validated pre-and immediate post treatment, as well as during follow-up studies.

  • 270.
    Andersson, Magnus
    et al.
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Mekanisk värmeteori och strömningslära. Linköpings universitet, Tekniska fakulteten.
    Lantz, Jonas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten.
    Ebbers, Tino
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Fysiologiska kliniken US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Karlsson, Matts
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Mekanisk värmeteori och strömningslära. Linköpings universitet, Tekniska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Multidirectional WSS disturbances in stenotic turbulent flows: A pre- and post-intervention study in an aortic coarctation2017Ingår i: Journal of Biomechanics, ISSN 0021-9290, E-ISSN 1873-2380, Vol. 51Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Wall shear stress (WSS) disturbances are commonly expressed at sites of abnormal flow obstructions and may play an essential role in the pathogenesis of various vascular diseases. In laminar flows these disturbances have recently been assessed by the transverse wall shear stress (transWSS), which accounts for the WSS multidirectionality. Site-specific estimations of WSS disturbances in pulsatile transitional and turbulent type of flows are more challenging due to continuous and unpredictable changes in WSS behavior. In these complex flow settings, the transWSS may serve as a more comprehensive descriptor for assessing WSS disturbances of general nature compared to commonly used parameters. In this study large eddy simulations (LES) were used to investigate the transWSS properties in flows subjected to different pathological turbulent flow conditions, governed by a patient-specific model of an aortic coarctation pre and post balloon angioplasty. Results showed that regions of strong near-wall turbulence were collocated with regions of elevated transWSS and turbulent WSS, while in more transitional-like near-wall flow regions a closer resemblance was found between transWSS and low, and oscillatory WSS. Within the frame of this study, the transWSS parameter demonstrated a more multi-featured picture of WSS disturbances when exposed to different types of flow regimes, characteristics which were not depicted by the other parameters alone. (C) 2016 Published by Elsevier Ltd.

  • 271.
    Andersson, Malin
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Linköpings universitet, Medicinska fakulteten.
    Jägervall, Karl
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Eriksson, Per
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland. Linköpings universitet, Medicinska fakulteten.
    Persson, Anders
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Granerus, Göran
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Fysiologiska kliniken US.
    Wang, Chunliang
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. KTH Royal Institute Technology, Sweden.
    Smedby, Örjan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. KTH Royal Institute Technology, Sweden.
    How to measure renal artery stenosis - a retrospective comparison of morphological measurement approaches in relation to hemodynamic significance2015Ingår i: BMC Medical Imaging, ISSN 1471-2342, E-ISSN 1471-2342, Vol. 15, nr 42Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Although it is well known that renal artery stenosis may cause renovascular hypertension, it is unclear how the degree of stenosis should best be measured in morphological images. The aim of this study was to determine which morphological measures from Computed Tomography Angiography (CTA) and Magnetic Resonance Angiography (MRA) are best in predicting whether a renal artery stenosis is hemodynamically significant or not. Methods: Forty-seven patients with hypertension and a clinical suspicion of renovascular hypertension were examined with CTA, MRA, captopril-enhanced renography (CER) and captopril test (Ctest). CTA and MRA images of the renal arteries were analyzed by two readers using interactive vessel segmentation software. The measures included minimum diameter, minimum area, diameter reduction and area reduction. In addition, two radiologists visually judged the diameter reduction without automated segmentation. The results were then compared using limits of agreement and intra-class correlation, and correlated with the results from CER combined with Ctest (which were used as standard of reference) using receiver operating characteristics (ROC) analysis. Results: A total of 68 kidneys had all three investigations (CTA, MRA and CER + Ctest), where 11 kidneys (16.2 %) got a positive result on the CER + Ctest. The greatest area under ROC curve (AUROC) was found for the area reduction on MRA, with a value of 0.91 (95 % confidence interval 0.82-0.99), excluding accessory renal arteries. As comparison, the AUROC for the radiologists visual assessments on CTA and MRA were 0.90 (0.82-0.98) and 0.91 (0.83-0.99) respectively. None of the differences were statistically significant. Conclusions: No significant differences were found between the morphological measures in their ability to predict hemodynamically significant stenosis, but a tendency of MRA having higher AUROC than CTA. There was no significant difference between measurements made by the radiologists and measurements made with fuzzy connectedness segmentation. Further studies are required to definitely identify the optimal measurement approach.

  • 272.
    Andersson, Manne
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Dept Surg, Ryhov Cty Hosp, Jonkoping, Sweden.
    Kolodziej, B.
    County Council Jonköping, Sweden.
    Andersson, Roland
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. County Council Jonköping, Sweden.
    Randomized clinical trial of Appendicitis Inflammatory Response score-based management of patients with suspected appendicitis2017Ingår i: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 104, nr 11, s. 1451-1461Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BackgroundThe role of imaging in the diagnosis of appendicitis is controversial. This prospective interventional study and nested randomized trial analysed the impact of implementing a risk stratification algorithm based on the Appendicitis Inflammatory Response (AIR) score, and compared routine imaging with selective imaging after clinical reassessment. MethodPatients presenting with suspicion of appendicitis between September 2009 and January 2012 from age 10years were included at 21 emergency surgical centres and from age 5years at three university paediatric centres. Registration of clinical characteristics, treatments and outcomes started during the baseline period. The AIR score-based algorithm was implemented during the intervention period. Intermediate-risk patients were randomized to routine imaging or selective imaging after clinical reassessment. ResultsThe baseline period included 1152 patients, and the intervention period 2639, of whom 1068 intermediate-risk patients were randomized. In low-risk patients, use of the AIR score-based algorithm resulted in less imaging (192 versus 345 per cent; Pamp;lt;0001), fewer admissions (295 versus 428 per cent; Pamp;lt;0001), and fewer negative explorations (16 versus 32 per cent; P=0030) and operations for non-perforated appendicitis (68 versus 97 per cent; P=0034). Intermediate-risk patients randomized to the imaging and observation groups had the same proportion of negative appendicectomies (64 versus 67 per cent respectively; P=0884), number of admissions, number of perforations and length of hospital stay, but routine imaging was associated with an increased proportion of patients treated for appendicitis (534 versus 463 per cent; P=0020). ConclusionAIR score-based risk classification can safely reduce the use of diagnostic imaging and hospital admissions in patients with suspicion of appendicitis. Registration number: NCT00971438 ( ). Reduces imaging and admissions

  • 273.
    Andersson, Maria
    et al.
    NIDA, MD 21224 USA.
    Diao, Xingxing
    NIDA, MD 21224 USA.
    Wohlfarth, Ariane
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten. NIDA, MD 21224 USA; National Board Forens Med, Department Forens Genet and Forens Toxicol, S-58758 Linkoping, Sweden.
    Scheidweiler, Karl B.
    NIDA, MD 21224 USA.
    Huestis, Marilyn A.
    NIDA, MD 21224 USA.
    Metabolic profiling of new synthetic cannabinoids AMB and 5F-AMB by human hepatocyte and liver microsome incubations and high-resolution mass spectrometry2016Ingår i: Rapid Communications in Mass Spectrometry, ISSN 0951-4198, E-ISSN 1097-0231, Vol. 30, nr 8, s. 1067-1078Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    RationaleAMB (methyl (1-pentyl-1H-indazole-3-carbonyl)-L-valinate)) and its fluoro analog 5F-AMB (methyl (1-(5-fluoropentyl)-1H-indazole-3-carbonyl)-L-valinate) are two new synthetic cannabinoids that are structural analogs of AB-PINACA and 5F-AB-PINACA, respectively. 5F-AMB is scheduled as an illicit drug in China, Germany, Singapore and Japan, and no metabolism data are currently available for either drug. The aim of the present work was to investigate the metabolism of AMB and 5F-AMB and propose appropriate markers to identify their intake in clinical or forensic cases. MethodsAMB and 5F-AMB were incubated in human hepatocytes (10 mol/L) to generate phase I and II metabolites, which were identified with a TripleTOF 5600(+) high-resolution mass spectrometer. AMB and 5F-AMB metabolic stability studies also were performed with human liver microsomes (HLM) to evaluate metabolic clearances, and to adequately design the human hepatocyte experiment. ResultsAMB and 5F-AMB were quickly metabolized in HLM with a 1.1 0.1 and 1.0 +/- 0.2min T-1/2, respectively. The predominant metabolic pathway for AMB and 5F-AMB in hepatocytes was ester hydrolysis, and further oxidation and/or glucuronidation. In total, 19 metabolites were identified for AMB and 17 for 5F-AMB. We describe metabolites to differentiate AMB from 5F-AMB, and metabolites that are common to both analytes due to oxidative defluorination of 5F-AMB. ConclusionsFor the first time, AMB and 5F-AMB metabolism profiles were characterized, providing valuable data for identifying these two novel psychoactive substances. The difficulties of differentiating AMB and 5F-AMB from AB-PINACA/5F-AB-PINACA metabolites also were examined. These data improve the interpretation of urinary markers after AMB and 5F-AMB intake. Published in 2016. This article is a U.S. Government work and is in the public domain in the USA

  • 274.
    Andersson, Maria
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi, infektion och inflammation. Linköpings universitet, Medicinska fakulteten.
    Östholm Balkhed, Åse
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi, infektion och inflammation. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Infektionskliniken i Östergötland.
    Fredrikson, Mats
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Holmbom, Martin
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi, infektion och inflammation. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Urologiska kliniken i Östergötland.
    Hällgren, Anita
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi, infektion och inflammation. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Infektionskliniken i Östergötland.
    Berg, Sören
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Thorax-kärlkliniken i Östergötland.
    Hanberger, Håkan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi, infektion och inflammation. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Infektionskliniken i Östergötland.
    Delay of appropriate antibiotic treatment is associated with high mortality in patients with community-onset sepsis in a Swedish setting2019Ingår i: European Journal of Clinical Microbiology and Infectious Diseases, ISSN 0934-9723, E-ISSN 1435-4373, Vol. 38, nr 7, s. 1223-1234Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Early appropriate antimicrobial therapy is crucial in patients with sepsis and septic shock. Studies often focus on time to first dose of appropriate antibiotics, but subsequent dosing is equally important. Our aim was to investigate the impact of fulfillment of early treatment, with focus on appropriate administration of first and second doses of antibiotics, on 28-day mortality in patients with community-onset severe sepsis and septic shock. A retrospective study on adult patients admitted to the emergency department with community-onset sepsis and septic shock was conducted 2012-2013. The criterion early appropriate antibiotic treatment was defined as administration of the first dose of adequate antibiotics within 1h, and the second dose given with less than 25% delay after the recommended dose interval. A high-risk patient was defined as a septic patient with either shock within 24h after arrival or red triage level on admittance according to the Medical Emergency Triage and Treatment System Adult. Primary endpoint was 28-day mortality. Of 90 patients, less than one in four (20/87) received early appropriate antibiotic treatment, and only one in three (15/44) of the high-risk patients. The univariate analysis showed a more than threefold higher mortality among high-risk patients not receiving early appropriate antibiotic treatment. Multivariable analysis identified early non-appropriate antibiotic treatment as an independent predictor of mortality with an odds ratio for mortality of 10.4. Despite that the importance of early antibiotic treatment has been established for decades, adherence to this principle was very poor.

  • 275.
    Andersson, Marine L
    et al.
    Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm,.
    Böttiger, Ylva
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk farmakologi.
    Kockum, Henrik
    3Department of.
    Eiermann, Birgit
    Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm,.
    High Prevalence of Drug-Drug Interactions in Primary Health Care is Caused by Prescriptions from other Healthcare Units.2018Ingår i: Basic & Clinical Pharmacology & Toxicology, ISSN 1742-7835, E-ISSN 1742-7843, Vol. 122, nr 5, s. 512-516Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Drug-drug interactions are increasingly common, as patients are getting older and the number of drugs per patient is increasing. In this study, we investigated to which extent potential drug-drug interactions originated from single or multiple prescribers. All patients attending any of 20 primary healthcare centres were included in a retrospective observational cohort study. Data on all prescriptions to these patients, irrespectively of the prescriber, were collected for two 4-month periods. Potential drug interactions were identified using the drug-drug interaction database SFINX. Interactions were classified with respect to the workplace of the prescriber, and the prevalence of interactions according to origin was analysed. We found that the drug interactions were significantly more common when the drugs were prescribed from different healthcare centres, compared with drugs prescribed from the patients' primary healthcare centre only. One explanation for this increased risk of drug interactions could be that the prescribers at different primary healthcare centres do not share the same information concerning the total medication list of the patient.

  • 276.
    Andersson, Martin O.
    et al.
    Linnaeus University, Sweden; Lund University, Sweden.
    Bergvall, Ulrika A.
    Stockholm University, Sweden; Swedish University of Agriculture Science, Sweden.
    Chirico, Jan
    National Vet Institute SVA, Sweden.
    Christensson, Madeleine
    Swedish University of Agriculture Science, Sweden.
    Lindgren, Per-Eric
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Medicinska fakulteten. County Hospital Ryhov, Sweden.
    Nordstrom, Jonas
    Swedish University of Agriculture Science, Sweden; Dalarna County Adm Board, Sweden.
    Kjellander, Petter
    Swedish University of Agriculture Science, Sweden.
    Molecular detection of Babesia capreoli and Babesia venatorum in wild Swedish roe deer, Capreolus capreolus2016Ingår i: Parasites & Vectors, ISSN 1756-3305, E-ISSN 1756-3305, Vol. 9, nr 221Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: The epidemiology of the zoonotic tick-transmitted parasite Babesia spp. and its occurrence in wild reservoir hosts in Sweden is unclear. In European deer, several parasite species, including Babesia capreoli and the zoonotic B. venatorum and B. divergens has been reported previously. The European roe deer, Capreolus capreolus, is an important and common part of the indigenous fauna in Europe, as well as an important host for Ixodes ricinus ticks, the vector of several Babesia spp. in Europe. Here, we aimed to investigate the occurrence of Babesia spp. in roe deer in Sweden. Findings: Roe deer (n = 77) were caught and sampled for blood. Babesia spp. was detected with a PCR assay targeting the 18S rRNA gene. The prevalence of Babesia spp. was 52 %, and two species were detected; B. capreoli and B. venatorum in 44 and 7.8 % of the individuals, respectively. Infection occurred both in summer and winter. Conclusions: We showed that roe deer in Sweden, close to the edge of their northern inland distributional range, are infected with Babesia spp. The occurrence of B. venatorum in roe deer imply that it is established in Sweden and the zoonotic implication of this finding should be regarded to a greater extent in future.

  • 277.
    Andersson, Per
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Department of Internal Medicine, County Council of Jönköping, Jönköping.
    Landberg, Eva
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk kemi.
    Festin, Karin
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Nilsson, Staffan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Norrköping, Sweden.
    Consequences of high-sensitivity troponin T testing applied in a primary care population with chest pain compared with a commercially available point-of-care troponin T analysis: an observational prospective study2015Ingår i: BMC Research Notes, ISSN 1756-0500, E-ISSN 1756-0500, Vol. 8, nr 1, s. 1-9Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND:There is a demand for a highly sensitive and specific point-of care test to detect acute myocardial infarction (AMI). It is unclear if a high-sensitivity troponin assay will have enough discriminative power to become a decision support in primary care. The aim of this study was to evaluate a high-sensitivity troponin T assay performed in three primary health care centres in southeast Sweden and to compare the outcome with a point-of-care troponin T test.METHODS:This study included 115 patients who consulted their general practitioner for chest pain, dyspnoea on exertion, unexplained weakness and/or fatigue in the last 7days. Troponin T was analysed by a point-of-care test and a high-sensitivity method together with N-terminal pro-B-type natriuretic peptide (NT-proBNP) and creatinine. All patients were checked for AMI or unstable angina (UA) within 30days of study enrolment. Univariate and multivariate logistic regression was carried out to examine possible connections between troponin T[greater than or equal to]15ng/L, clinical variables and laboratory findings at baseline. In addition, 21 patients with troponin T[greater than or equal to]15ng/L and no signs of AMI or UA were followed up for 2-3years.RESULTS:Three patients were diagnosed with AMI and three with UA. At the [greater than or equal to]15ng/L cut-off, the troponin T method had 100% sensitivity, 75% specificity for AMI and a positive predictive value of 10%. The troponin T point-of-care test missed one case of AMI and the detection limit was 50ng/L. Troponin T[greater than or equal to]15ng/L was correlated to age [greater than or equal to]65years (odds ratio (OR), 10.9 95% CI 2.28-51.8) and NT-proBNP in accordance with heart failure (OR 8.62 95% CI 1.61-46.1). Fourteen of the 21 patients, without signs of AMI or UA at baseline, still had increased troponin T at follow-up after 2-3years.CONCLUSIONS:A high-sensitivity troponin T assay could become useful in primary care as a point-of-care test for patients <65years. For patients older than 65-70years, a higher decision limit than [greater than or equal to]15ng/L should be considered and used in conjunction with clinical parameters and possibly with NT-proBNP.

  • 278.
    Andersson, Per
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Primärvårdscentrum, Vårdcentralen Ljungsbro.
    Sederholm Lawesson, Sofia
    Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Dept Internal Med, Sweden.
    Nilsson, Staffan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Primärvårdscentrum, Vårdcentralen Vikbolandet.
    Thylén, Ingela
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Characteristics of patients with acute myocardial infarction contacting primary healthcare before hospitalisation: a cross-sectional study2018Ingår i: BMC Family Practice, ISSN 1471-2296, E-ISSN 1471-2296, Vol. 19, artikel-id 167Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: The characteristics of patients with on-going myocardial infarction (MI) contacting the primary healthcare (PHC) centre before hospitalisation are not well known. Prompt diagnosis is crucial in patients with MI, but many patients delay seeking medical care. The aims of this study was to 1) describe background characteristics, symptoms, actions and delay times in patients contacting the PHC before hospitalisation when falling ill with an acute MI, 2) compare those patients with acute MI patients not contacting the PHC, and 3) explore factors associated with a PHC contact in acute MI patients. Methods: This was a cross-sectional multicentre study, enrolling consecutive patients with MI within 24 hours of admission to hospital from Nov 2012 until Feb 2014. Results: A total of 688 patients with MI, 519 men and 169 women, were included; the mean age was 66 +/- 11 years. One in five people contacted PHC instead of the recommended emergency medical services (EMS), and 94% of these patients experienced cardinal symptoms of an acute MI; i.e., chest pain, and/or radiating pain in the arms, and/or cold sweat. Median delay time from symptom-onset-to-decision-to-seek-care was 2:15 hours in PHC patients and 0:40 hours in non-PHC patients (pamp;lt;0.01). The probability of utilising the PHC before hospitalisation was associated with fluctuating symptoms (OR 1.74), pain intensity (OR 0.90) symptoms during off-hours (OR 0.42), study hospital (OR 3.49 and 2.52, respectively, for two of the county hospitals) and a final STEMI diagnosis (OR 0.58). Conclusions: Ambulance services are still underutilized in acute MI patients. A substantial part of the patients contacts their primary healthcare centre before they are diagnosed with MI, although experiencing cardinal symptoms such as chest pain. There is need for better knowledge in the population about symptoms of MI and adequate pathways to qualified care. Knowledge and awareness amongst primary healthcare professionals on the occurrence of MI patients is imperative.

  • 279.
    Andersson, Peter
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Kirurgiska kliniken US.
    Muhrbeck, Måns
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Kirurgiska kliniken ViN.
    Veen, Harald
    Int Comm Red Cross, Switzerland.
    Osman, Zaher
    Int Comm Red Cross, Switzerland.
    von Schreeb, Johan
    Karolinska Institute, Sweden.
    Hospital Workload for Weapon-Wounded Females Treated by the International Committee of the Red Cross: More Work Needed than for Males2018Ingår i: World Journal of Surgery, ISSN 0364-2313, E-ISSN 1432-2323, Vol. 42, nr 1, s. 93-98Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Civilians constitute 33-51% of victims in armed conflicts. Several reports on civilian injuries exist, but few have focused on injuries afflicting females. We analyzed routinely collected data on weapon-related injuries from the International Committee of the Red Cross (ICRC) hospital in northwestern Pakistan in order to define injury patterns and types of surgical treatment for females. A total of 3028 patient files (376 females) from consecutively admitted patients to the ICRC-hospital in Peshawar from February 2009 to May 2012 were included. Information regarding injury-mechanism, time since injury, vital parameters at admission, type of injury, treatment and basic outcome was extracted from the files and analyzed. Comparisons between gender and age-groups were done by cross-table analyses or nonparametric tests. Females were younger than males (20 vs. 25 years), arrived sooner after injury (24 vs. 48 h) (p amp;lt; 0.001 for both) and were victims of bombs and missiles more frequently (64.4 vs. 54.6%) (p amp;lt; 0.001). Vital parameters such as systolic blood pressure (110 vs. 113 mmHg) and pulse rate (100 vs. 86) were more affected at admission (p amp;lt; 0.001 for both). Females were subjected to surgery (83.0 vs. 77.4%) (p amp;lt; 0.05) and were given blood transfusions more often (18.8 vs. 13.6%) (p amp;lt; 0.01). No differences in amputations or in-hospital mortality were found. Females treated at the ICRC-hospital in northwestern Pakistan are markedly affected by indiscriminate weapons such as bombs and missiles. Their average consumption of surgery is greater than for males, and this might be relevant in planning for staffing and facility needs in similar contexts.

  • 280.
    Andersson, Roland
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Medicinska fakulteten. County Hospital Ryhov, Sweden.
    Editorial Material: Does Delay of Diagnosis and Treatment in Appendicitis Cause Perforation? in WORLD JOURNAL OF SURGERY, vol 40, issue 6, pp 1315-13172016Ingår i: World Journal of Surgery, ISSN 0364-2313, E-ISSN 1432-2323, Vol. 40, nr 6, s. 1315-1317Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    n/a

  • 281.
    Andersson, Roland
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Cty Hosp Ryhov, Sweden.
    Less invasive pilonidal sinus surgical procedures2019Ingår i: Colo-Proctology, ISSN 0174-2442, E-ISSN 1615-6730, Vol. 41, nr 2, s. 117-120Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Pilonidal disease can be treated by less invasive methods such as simple mechanical cleansing of the sinus and cavity of hairs and granulation tissue eventually supplemented by filling the space with an antiseptic or sclerosing agent like phenol (forbidden in Germany due to its toxicity) or space-holding fibrin glue. Minimal excision or debridement of the sinus and/or cavity through amidline or aseparate paramedial excision can also be performed, leaving the wounds open or closed. These methods are simple and cost-efficient, and associated with low pain, rapid healing, and arapid return to normal activity. Adisadvantage is the higher recurrence rate; however, these methods can be used repeatedly for recurrences. Whereas the evidence for treatment with phenol or fibrine glue is weak, there are numerous reports supporting the safety and efficiency of the minimally invasive surgical methods. Because of the associated low risk for complications and morbidity, these procedures are suitable for first-line treatment in the majority of pilonidal disease patients.

  • 282.
    Andersson, Roland
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Cty Hosp Ryhov, Sweden.
    May fibrine glue play aroleasanadjunct?2019Ingår i: Colo-Proctology, ISSN 0174-2442, E-ISSN 1615-6730, Vol. 41, nr 3, s. 212-212Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    n/a

  • 283.
    Andersson, Roland
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för Kirurgi, Ortopedi och Onkologi. Linköpings universitet, Medicinska fakulteten. Department of Surgery, County Hospital Ryhov, Jönköping, Sweden.
    Doll, Dietrich
    Department of Surgery, St Marienhospital Vechta, Academic Teaching Hospital of the Medical School Hannover, Vechta, Germany.
    Stauffer, Verena K
    Department of Emergency Medicine, Sonnenhofspital, Lindenhofgruppe, Bern, Switzerland.
    Vogt, Andreas P
    Department of Anesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.
    Boggs, Steven D
    Department of Anesthesiology, University of Tennessee Health Science Center, Memphis, Tennessee.
    Luedi, Markus M.
    Department of Anesthesiology and Pain Medicine, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland.
    Interdisciplinary Dialogue Is Needed When Defining Perioperative Recommendations: Conflicting Guidelines for Anesthetizing Patients for Pilonidal Surgery2018Ingår i: AandA practice, ISSN 2575-3126, Vol. 11, nr 8, s. 227-229Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    National or international guidelines can help surgeons and anesthesiologists make treatment decisions, but the existence of conflicting recommendations can hinder treatment rather than helping. A case in point is the treatment of pilonidal sinus disease, a chronic subcutaneous infection located in the sacrococcygeal area. Its incidence is rising, reaching almost 100/100,000 inhabitants. Three surgical societies have proposed guidelines for treating the disease, but these guidelines vary greatly in their approach to anesthesia. Who should provide input into guidelines? And how can medical disciplines successfully collaborate? Anesthesiologists must be involved in defining perioperative recommendations not only in patients with pilonidal sinus disease.

  • 284.
    Andersson, Siv Folkhammar
    et al.
    Unit of Rehabilitation, Kalmar County Council, Oskarshamn, Sweden.
    Bergman, Stefan
    Department of Clinical Sciences, Section of Rheumatology, Lund University, Lund, Sweden; Primary Health Care Unit, Department of Public Health and Community Medicine, Institute of Medicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Henriksson Welin, Elisabet
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Divison of Nursing, Department of Neurobiology, Care Sciences and Society,Karolinska Institutet, Huddinge, Sweden.
    Bremander, Ann
    Department of Clinical Sciences, Section of Rheumatology, Lund University, Lund, Sweden; School of Business, Engineering and Science, Halmstad University, Halmstad, Sweden.
    Arthritis management in primary care: A study of physiotherapists current practice, educational needs and adherence to national guidelines2017Ingår i: Musculoskeletal Care, ISSN 1478-2189, E-ISSN 1557-0681, Vol. 15, nr 4, s. 333-340Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background

    With an increasing number of patients with osteoarthritis (OA) and rheumatoid arthritis (RA) in primary care, our aim was to investigate arthritis‐related practice in physiotherapy and to study adherence to evidence‐based care.

    Methods

    Seventy physiotherapists (PTs) working in primary care were emailed a questionnaire to investigate current practice and the number of roles assumed by PTs, the degree of confidence, educational needs and adherence to national guidelines in managing patients with OA or RA. Interventions supported by national guidelines were compared with reports of treatment modalities in the questionnaire.

    Results

    Sixty‐four (91%) PTs responded, and they reported a higher degree of confidence in assessment, treatment and education of patients with OA than for those with RA (p < 0.001). The total number of roles assumed by the PTs was higher in the management of OA than for RA (p < 0.001). PTs who assumed a greater number of roles also reported a stronger degree of confidence in assessing OA (p = 0.036). Those who assumed fewer roles also reported less confidence in RA treatment (p = 0.045). Recommendations in the guidelines were followed by the majority of PTs for eight of 11 treatment modalities in OA and for six of six in RA.

    Conclusions

    PTs reported a lower degree of confidence and the assumption of fewer roles in managing patients with RA compared with OA. There was good adherence to the national guidelines for almost all the treatment modalities listed. Even so, the results indicate a need for education, especially in chronic inflammatory arthritis care.

  • 285.
    Andersson, Sten-Ove
    et al.
    Linnaeus University, Sweden, Swedish Armed Forces, V Frölunda, Sweden.
    Lundberg, Lars
    Försvarsmakten, Centrum för Försvarsmedicin, Sweden, Borås University, Sweden.
    Jonsson, Anders
    Borås University, Sweden.
    Tingström, Pia
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Abrandt Dahlgren, Madeleine
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Doctors' and nurses' perceptions of military pre-hospital emergency care - When training becomes reality2017Ingår i: International Emergency Nursing, ISSN 1755-599X, E-ISSN 1878-013X, Vol. 32, s. 70-77Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    The aim of this study was to identify physicians' and nurses' perceptions of military pre-hospital emergency care before and after an international mission. A qualitative empirical study with a phenomenographic approach was used. The results after pre-deployment traing can be categorised as 1) learning about military medicine and 2) taking care of the casualty. The results after an international mission can be categorised as 1) collaborating with others 2) providing general health care and 3) improving competence in military medicine. The results indicate that the training should be developed in order to optimise pre-deployment training for physicians and nurses. This may result in increased safety for the provider of care, while at the same time minimising suffering and enhancing the possibility of survival of the injured.

  • 286.
    Andersson Sundell, K.
    et al.
    University of Gothenburg, Sweden.
    Jönsson, Anna K.
    Region Östergötland, Diagnostikcentrum, Klinisk farmakologi. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning.
    Beliefs about medicines are strongly associated with medicine-use patterns among the general population2016Ingår i: International journal of clinical practice (Esher), ISSN 1368-5031, E-ISSN 1742-1241, Vol. 70, nr 3, s. 277-285Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    AimsTo investigate self-reported beliefs and perceived sensitivity to medicines and their effects in relation to self-reported use of medicines and herbal remedies. MethodsA survey sent to 13,931 randomly selected Swedish adults included the Beliefs about Medicines Questionnaire-General (BMQ-General) Questionnaire and the Perceived Sensitivity to Medicines Scale (PSM). The survey also asked about individuals use of prescribed and over-the-counter (OTC) medicines and herbal remedies in the past month. We examined all associations between scores on the BMQ-General subscales and PSM in relation to the use of medicines and herbal remedies, using analysis of covariance adjusted for potential confounders. ResultsAmong 7099 respondents, those using herbal remedies exclusively believed strongly that prescription and OTC medicines are harmful and overprescribed. Respondents using prescription and OTC medicines reported more positive beliefs [coefficient 0.67 (95% CI 0.47-0.87) and 0.70 (95% CI 0.51-0.90)] on the benefits of medicines compared with those using herbal remedies [-0.18 (95% CI -0.57-0.20)]. Perceived sensitivity to medicines was higher among those using herbal remedies only [1.25 (95% CI 0.46-2.03)] compared with those using no medicines (reference 0) or prescription [-0.44 (95% CI -0.84 to -0.05)] or OTC [-0.27 (95% CI -0.66-0.12)] medicines alone. ConclusionRespondents using prescription and/or OTC medicines reported stronger positive beliefs about the benefits of medicines in general, supporting the hypothesis that beliefs influence medicine use. Therefore, addressing beliefs and concerns about medicines during patient counselling may influence medicine use, particularly regarding unintentional non-adherence.

  • 287.
    Andersson, Thomas
    et al.
    Department of Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden.
    Bjerså, Kristofer
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Falk, Kristin
    Institute of Health and Care Sciences, Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden.
    Olsén, Monika Fagevik
    Department of Surgery and Department of Physical Therapy, Sahlgrenska University Hospital; Department of Gastrosurgical Research and Education, Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden.
    Effects of chewing gum against postoperative ileus after pancreaticoduodenectomy: a randomized controlled trial2015Ingår i: BMC Research Notes, ISSN 1756-0500, E-ISSN 1756-0500, Vol. 8, nr 37, artikel-id 25886536Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: Postoperative ileus is common after surgery. One non-pharmacological intervention that has shown promising results in reducing the duration of postoperative ileus is chewing gum after surgery. However, this has not been investigated in upper gastrointestinal surgery such as pancreatic surgery. Hence the aim of this study was to investigate the effects of chewing gum treatment on patients undergoing pancreaticoduodenectomy ad modum whipple due to pancreatic or periampullary cancer.

    METHODS: This study was conducted as a phase III trial that was terminated early. Patients diagnosed with pancreatic tumours scheduled for pancreaticoduodenectomy ad modum whipple were included. The treatment group received chewing gum postoperatively and standard care. Controls received glucose solution and standard care. Chewing gum and glucose were used four times a day during the whole hospital stay. Time to first flatus and stool was defined as the primary outcome. The secondary outcome was start with clear liquids, start with liquid diet and length of hospital stay.

    RESULTS: No statistically significant differences could be observed between the chewing gum intervention group and the control group. However, a numerical difference in mean time was observed in first flatus, first stool, start of clear fluids, and start of liquid diet and length of hospital stay in favour of the intervention group.

    CONCLUSIONS: Although this study did not find statistically significant differences favouring the use of chewing gum for postoperative ileus, a positive trend was observed of a reduction of the impact of postoperative ileus among patients after pancreatic surgery. It also contributes valuable methodological experience that is important for future studies of chewing gum interventions during recovery after pancreatic surgery.

    TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02319512 , publication date 2014-12-17.

  • 288.
    Andersson, Thord
    et al.
    Linköpings universitet, Institutionen för medicinsk teknik. Linköpings universitet, Tekniska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Dept. of C4ISR, Swedish Defence Research Agency, Linköping, Sweden, .
    Borga, Magnus
    Linköpings universitet, Institutionen för medicinsk teknik, Avdelningen för medicinsk teknik. Linköpings universitet, Tekniska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Dahlqvist Leinhard, Olof
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Radiofysikavdelningen US.
    Geodesic registration for interactive atlas-based segmentation using learned multi-scale anatomical manifolds2018Ingår i: Pattern Recognition Letters, ISSN 0167-8655, E-ISSN 1872-7344, Vol. 112, s. 340-345Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Atlas-based segmentation is often used to segment medical image regions. For intensity-normalized data, the quality of these segmentations is highly dependent on the similarity between the atlas and the target under the used registration method. We propose a geodesic registration method for interactive atlas-based segmentation using empirical multi-scale anatomical manifolds. The method utilizes unlabeled images together with the labeled atlases to learn empirical anatomical manifolds. These manifolds are defined on distinct scales and regions and are used to propagate the labeling information from the atlases to the target along anatomical geodesics. The resulting competing segmentations from the different manifolds are then ranked according to an image-based similarity measure. We used image volumes acquired using magnetic resonance imaging from 36 subjects. The performance of the method was evaluated using a liver segmentation task. The result was then compared to the corresponding performance of direct segmentation using Dice Index statistics. The method shows a significant improvement in liver segmentation performance between the proposed method and direct segmentation. Furthermore, the standard deviation in performance decreased significantly. Using competing complementary manifolds defined over a hierarchy of region of interests gives an additional improvement in segmentation performance compared to the single manifold segmentation.

  • 289.
    Andersson, Thord
    et al.
    Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Romu, Thobias
    Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska högskolan. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Karlsson, Anette
    Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska högskolan. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Norén, Bengt
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping.
    Forsgren, Mikael
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Radiofysikavdelningen US.
    Smedby, Örjan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping.
    Kechagias, Stergios
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Magtarmmedicinska kliniken.
    Almer, Sven
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Magtarmmedicinska kliniken.
    Lundberg, Peter
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Radiofysikavdelningen US. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping.
    Borga, Magnus
    Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska högskolan. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Dahlqvist Leinhard, Olof
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för radiologiska vetenskaper. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Radiofysikavdelningen US.
    Consistent intensity inhomogeneity correction in water–fat MRI2015Ingår i: Journal of Magnetic Resonance Imaging, ISSN 1053-1807, E-ISSN 1522-2586, Vol. 42, nr 2, s. 468-476Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE:

    To quantitatively and qualitatively evaluate the water-signal performance of the consistent intensity inhomogeneity correction (CIIC) method to correct for intensity inhomogeneities METHODS: Water-fat volumes were acquired using 1.5 Tesla (T) and 3.0T symmetrically sampled 2-point Dixon three-dimensional MRI. Two datasets: (i) 10 muscle tissue regions of interest (ROIs) from 10 subjects acquired with both 1.5T and 3.0T whole-body MRI. (ii) Seven liver tissue ROIs from 36 patients imaged using 1.5T MRI at six time points after Gd-EOB-DTPA injection. The performance of CIIC was evaluated quantitatively by analyzing its impact on the dispersion and bias of the water image ROI intensities, and qualitatively using side-by-side image comparisons.

    RESULTS:

    CIIC significantly ( P1.5T≤2.3×10-4,P3.0T≤1.0×10-6) decreased the nonphysiological intensity variance while preserving the average intensity levels. The side-by-side comparisons showed improved intensity consistency ( Pint⁡≤10-6) while not introducing artifacts ( Part=0.024) nor changed appearances ( Papp≤10-6).

    CONCLUSION:

    CIIC improves the spatiotemporal intensity consistency in regions of a homogenous tissue type. J. Magn. Reson. Imaging 2014.

  • 290.
    Anderzen, Johan
    et al.
    Ryhov County Hospital, Sweden.
    Samuelsson, Ulf
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Gudbjornsdottir, Soffia
    University of Gothenburg, Sweden.
    Hanberger, Lena
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Akesson, Karin
    Ryhov County Hospital, Sweden; Futurum, Australia; Jonköping Academic Improvement Health and Welf, Germany.
    Teenagers with poor metabolic control already have a higher risk of microvascular complications as young adults2016Ingår i: Journal of diabetes and its complications, ISSN 1056-8727, E-ISSN 1873-460X, Vol. 30, nr 3, s. 533-536Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aims: To evaluate how HbA1c in adolescents with type 1 diabetes affects microvascular complications in young adults. Methods: All individuals registered in the Swedish paediatric diabetes quality registry (SWEDIABKIDS) 13-18 years of age, and as adults registered in the Swedish National Diabetes Registry (NDR) in both the years 2011 and 2012 were included, in total 4250 individuals. Results: Of the individuals with mean HbA1c &gt;78 mmol/mol in SWEDIABKIDS 83.4% had retinopathy, 15.8% had microalbuminuria and 4.9% had macroalbuminuria in NDR. The logistic regression analysis showed that the OR to develop macroalbuminuria as a young adult was significantly higher in the group with mean HbA1c &gt;78 mmol/mol in SWEDIABKIDS (p &lt; 0.05). Among the patients with mean HbA1c above 78 mmol/mol in both registries there was a significantly higher proportion that had retinopathy, microalbuminuria (p &lt; 0.001) and/or macroalbuminuria (p &lt; 0.01) compared to the group with HbA1c below 57 mmol/mol in both registries. Only 6.5% of the persons in this study were over 30 years of age. Conclusions: Paediatric diabetes teams working with teenagers must be aware of the impact of good metabolic control during adolescence, and should intensify the care during this vulnerable period of life to reduce the risk of microvascular complications in young adults.

  • 291.
    Andolf, Ellika G.
    et al.
    Danderyd Hospital, Sweden.
    Sydsjö, Gunilla
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, Kvinnokliniken i Linköping.
    Bladh, Marie
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, Kvinnokliniken i Linköping.
    Berg, Göran
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, Kvinnokliniken i Linköping.
    Sharma, Surendra
    Brown University, RI 02908 USA.
    Hypertensive disorders in pregnancy and later dementia: a Swedish National Register Study2017Ingår i: Acta Obstetricia et Gynecologica Scandinavica, ISSN 0001-6349, E-ISSN 1600-0412, Vol. 96, nr 4, s. 464-471Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Introduction. Our aim was to investigate the rate of vascular dementia and dementia in women with previous hypertensive disorders in pregnancy, since white matter lesions of the brain and cardiovascular disease are linked both to dementia and hypertensive disorders in pregnancy. Material and methods. Prospective population-based registry study on all women giving birth in Sweden between 1973 and 1975 (284 598). Women with and without hypertensive disorders in pregnancy were identified by means of the Swedish Medical Birth Register and linked to the National Patient Register, where data on somatic disease later in life were obtained. International classification of disease was used. The Cox proportional hazard model was used to calculate hazard ratios for both groups and adjusted for possible confounders. Main outcome measures were in-hospital diagnosis of cardiovascular disease, vascular dementia and dementia. Results. No increased risks were seen for vascular dementia or dementia after any hypertensive disorders in pregnancy. If broken down in specific diagnoses for hypertensive disease in pregnancy, adjusted risks for vascular dementia after hypertension and proteinuria during pregnancy the hazard ratio was 6.27 (95% CI 1.65-27.44). Higher risks for cardiovascular disease were confirmed. Conclusions. Because of the very low absolute risk, the wide confidence interval and risk of misclassification, our results on vascular dementia could be questioned. Considering the pathophysiology of preeclampsia, the findings of brain lesions and the increased risk for cardiovascular disease, the possibly increased risk for all kinds of dementia must be investigated in larger and more well-defined cohorts.

  • 292.
    Andrade, Renato
    et al.
    FIFA Med Ctr Excellence, Portugal; Univ Porto, Portugal; Dom Henrique Res Ctr, Portugal.
    Pereira, Rogerio
    FIFA Med Ctr Excellence, Portugal; Univ Porto, Portugal; Dom Henrique Res Ctr, Portugal; Fernando Pessoa Univ, Portugal.
    Weir, Adam
    Erasmus MC, Netherlands; Aspetar Orthopaed and Sports Med Hosp, Qatar.
    Ardern, Clare
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för fysioterapi. Linköpings universitet, Medicinska fakulteten. La Trobe Univ, Australia.
    Espregueira-Mendes, Joao
    FIFA Med Ctr Excellence, Portugal; Dom Henrique Res Ctr, Portugal; Minho Univ, Portugal; Univ Minho, Portugal; ICVS 3Bs PT Govt Associate Lab, Portugal.
    Zombie reviews taking over the PROSPERO systematic review registry. Its time to fight back!2019Ingår i: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 53, nr 15, s. 919-921Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    n/a

  • 293.
    Andreae, Christina
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Appetite in patients with heart failure: Assessment, prevalence and related factors2018Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    Background: Appetite is an important component in nutrition for maintaining the food intake needed by the body. Decreased appetite is a common clinical problem in patients with heart failure. It has a negative impact on food intake and possibly on malnutrition and health outcomes. There is a lack of evidence on how to assess appetite in heart failure. Furthermore, there are knowledge gaps about factors associated with appetite and which role appetite plays for health status in heart failure.  

    Aim: The overall aim of the thesis was to investigate appetite in patients with heart failure. Four studies were conducted with the goal to evaluate the psychometric properties of the Council on Nutrition Appetite Questionnaire (CNAQ) (I) and to explore the prevalence of decreased appetite and related factors associated with appetite in patients with heart failure (II-IV).  

    Methods: A multicenter study was conducted in three outpatient heart failure clinics in the center of Sweden during 2009-2012. Data were collected through a baseline measurement (I-IV) and an 18-month follow-up (IV). The first study was a psychometric evaluation study (I), while the other studies had an observational cross-sectional design (II-III) and an observational prospective design (IV). One hundred and eighty-six patients diagnosed with heart failure and experiencing heart failure symptoms participated at baseline. At the 18-month follow-up study (IV), one hundred and sixteen participants from the baseline participated. Data were collected from medical records (pharmacological treatment, comorbidity, left ventricle ejection fraction, time of diagnosis), self-reported questionnaires (demographic background data, appetite, symptoms of depression, health status, sleep, self-reported physical activity), objective measurements (anthropometric assessment of body size, blood samples, six minutes’ walk test, and physical activity measured with an actigraph) and clinical assessment (New York Heart Association (NYHA) functional classification, and cognitive assessment). The main outcome variables included appetite (I, II and IV) and health status (III). Descriptive and inferential statistics were used in the studies (I-IV).  

    Results: The majority of the participants had moderate heart failure symptoms, i.e., NYHA class II (n=114, 61%). Most of the participants were men (n=130, 70%). Mean age was 70,7 years, (SD=11,0), and mean BMI was 28.7 (SD=5.3). The CNAQ showed acceptable psychometric properties for assessing appetite in patients with heart failure (I). This thesis shows that 38% of the participants experienced an appetite level that put them at risk of weight loss (I). It was shown that factors such as biological, medical, psychological (II) and physical activity/exercise capacity (IV) are associated with appetite. Also, appetite was associated with impaired health status. However, this association was found to be moderated by symptoms of depression (III). Neither appetite nor physical activity changed during the 18-month follow-up (IV).  

    Conclusion: Decreased appetite is a serious phenomenon that needs attention in the care of patients with heart failure. Health care professionals can now use a validated and simple appetite instrument to assess appetite in heart failure. In addition, attention should be paid to elderly patients and those who have symptoms of depression, sleep problems, impaired cognitive function and impaired physical activity, as well as to patients on suboptimal medical treatment. Higher appetite was shown to contribute to a better health status, but this was only evident in patients without symptoms of depression. Therefore, special attention should be paid to symptoms of depression, as this risk factor affected the association between appetite and health status. This thesis enhances the understanding of the magnitude of the problem with decreased appetite in heart failure both in numbers and factors. New priorities in nutrition care and new ideas can be established, both in practice and in research, in order to improve a nutrition care that is vital for patients with heart failure.  

    Delarbeten
    1. Psychometric Evaluation of Two Appetite Questionnaires in Patients With Heart Failure
    Öppna denna publikation i ny flik eller fönster >>Psychometric Evaluation of Two Appetite Questionnaires in Patients With Heart Failure
    2015 (Engelska)Ingår i: Journal of Cardiac Failure, ISSN 1071-9164, E-ISSN 1532-8414, Vol. 21, nr 12, s. 954-958Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Background: Decreased appetite in heart failure (HF) may lead to undemutrition which could negatively influence prognosis. Appetite is a complex clinical issue that is often best measured with the use of self-report instruments. However, there is a lack of self-rated appetite instruments. The Council on Nutrition Appetite Questionnaire (CNAQ) and the Simplified Nutritional Appetite Questionnaire (SNAQ) are validated instruments developed primarily for elderly people. Yet, the psychometric properties have not been evaluated in HF populations. The aim of the present study was to evaluate the psychometric properties of CNAQ and SNAQ in patients with HE Methods and Results: A total of 186 outpatients with reduced ejection fraction and New York Heart Association (NYHA) functional classifications II-IV were included (median age 72 y; 70% men). Data were collected with the use of a questionnaire that included the CNAQ and SNAQ. The psychometric evaluation included data quality, factor structure, construct validity, known-group validity, and internal consistency. Unidimensionality was supported by means of parallel analysis and confirmatory factor analyses (CFAs). The CFA results indicated sufficient model fit. Both construct validity and known-group validity were supported. Internal consistency reliability was acceptable, with ordinal coefficient alpha estimates of 0.82 for CNAQ and 0.77 for SNAQ. Conclusions: CNAQ and SNAQ demonstrated sound psychometric properties and can be used to measure appetite in patients with HF.

    Ort, förlag, år, upplaga, sidor
    CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS, 2015
    Nyckelord
    Appetite; heart failure; outpatient; psychometrics
    Nationell ämneskategori
    Klinisk medicin
    Identifikatorer
    urn:nbn:se:liu:diva-123773 (URN)10.1016/j.cardfail.2015.10.006 (DOI)000366230900004 ()26497759 (PubMedID)
    Anmärkning

    Funding Agencies|Center for Clinical Research and Sormland County Council, Sweden; Swedish Heart and Lung Foundation; King Gustaf V and Queen Victorias Freemason Foundation; Medical Research Council of Southeast Sweden; Canadian Institutes of Health Research

    Tillgänglig från: 2016-01-11 Skapad: 2016-01-11 Senast uppdaterad: 2018-03-14
    2. Prevalence and associated factors for decreased appetite among patients with stable heart failure
    Öppna denna publikation i ny flik eller fönster >>Prevalence and associated factors for decreased appetite among patients with stable heart failure
    2016 (Engelska)Ingår i: Journal of Clinical Nursing, ISSN 0962-1067, E-ISSN 1365-2702, Vol. 25, nr 11-12, s. 1703-1712Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Aims and objectivesTo explore the prevalence of decreased appetite and factors associated with appetite among patients with stable heart failure. BackgroundDecreased appetite is an important factor for the development of undernutrition among patients with heart failure, but there are knowledge gaps about prevalence and the factors related to appetite in this patient group. DesignObservational, cross-sectional study. MethodsA total of 186 patients with mild to severe heart failure were consecutively recruited from three heart failure outpatient clinics. Data were obtained from medical records (heart failure diagnosis, comorbidity and medical treatment) and self-rated questionnaires (demographics, appetite, self-perceived health, symptoms of depression and sleep). Blood samples were taken to determine myocardial stress and nutrition status. Heart failure symptoms and cognitive function were assessed by clinical examinations. The Council on Nutrition Appetite Questionnaire was used to assess self-reported appetite. Bivariate correlations and multivariate linear regression analyses were conducted to explore factors associated with appetite. ResultsSeventy-one patients (38%) experienced a loss of appetite with a significant risk of developing weight loss. The final multiple regression model showed that age, symptoms of depression, insomnia, cognitive function and pharmacological treatment were associated with appetite, explaining 27% of the total variance. ConclusionIn this cross-sectional study, a large share of patients with heart failure was affected by decreased appetite, associated with demographic, psychosocial and medical factors. Relevance to clinical practiceLoss of appetite is a prevalent problem among patients with heart failure that may lead to undernutrition. Health care professionals should routinely assess appetite and discuss patients experiences of appetite, nutrition intake and body weight and give appropriate nutritional advice with respect to individual needs.

    Ort, förlag, år, upplaga, sidor
    WILEY-BLACKWELL, 2016
    Nyckelord
    age; appetite; cognitive function; depression; heart failure; insomnia; outpatient; pharmacological treatment
    Nationell ämneskategori
    Klinisk medicin
    Identifikatorer
    urn:nbn:se:liu:diva-128929 (URN)10.1111/jocn.13220 (DOI)000375866200022 ()26879764 (PubMedID)
    Anmärkning

    Funding Agencies|Centre for Clinical Research Sormland, Uppsala University, Eskilstuna, Sweden; Swedish Heart and Lung Foundation; King Gustaf V and Queen Victorias Freemason Foundation; Medical Research Council of Southeast Sweden

    Tillgänglig från: 2016-06-09 Skapad: 2016-06-07 Senast uppdaterad: 2018-03-14
    3. Depressive Symptoms Moderate the Association Between Appetite and Health Status in Patients With Heart Failure
    Öppna denna publikation i ny flik eller fönster >>Depressive Symptoms Moderate the Association Between Appetite and Health Status in Patients With Heart Failure
    Visa övriga...
    2018 (Engelska)Ingår i: Journal of Cardiovascular Nursing, ISSN 0889-4655, E-ISSN 1550-5049, Vol. 33, nr 2, s. E15-E20Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    BACKGROUND: Decreased appetite and depressive symptoms are clinical problems in patients with heart failure. Both may result in impaired health status.

    OBJECTIVE: The aims of this study were to investigate the association between appetite and health status in patients with heart failure and to explore whether depressive symptoms moderate this association.

    METHODS: In this cross-sectional study, patients with heart failure (n = 186; mean age, 71 years), New York Heart Association class II to IV, participated. Data on appetite (Council of Nutrition Appetite Questionnaire), depressive symptoms (Patient Health Questionnaire-9), and health status (EQ-5D 3-level scale [EQ-5D-3L] descriptive system, EQ-5D-3L index, and EQ Visual Analog Scale) were collected by self-rating questionnaires. Pearson correlation was used to investigate the association between appetite and health status. Multiple regression was performed to examine whether depressive symptoms moderate the association between appetite and health status.

    RESULTS: There was a significant association between appetite and health status for EQ-5D-3L descriptive system, mobility (P < .001), pain/discomfort (P < .001), and anxiety/depression (P < .001). This association was also shown in EQ-5D-3L index (P < .001) and EQ Visual Analog Scale (P < .001). Simple slope analysis showed that the association between appetite and health status was only significant for patients without depressive symptoms (B = 0.32, t = 4.66, P < .001).

    CONCLUSIONS: Higher level of appetite was associated with better health status. In moderation analysis, the association was presented for patients without depressive symptoms. Decreased appetite is an important sign of poor health status. To improve health status, health professionals should have greater attention on appetite, as well on signs of depressive symptoms.

    Ort, förlag, år, upplaga, sidor
    Wolters Kluwer, 2018
    Nyckelord
    appetite, association, depression, health status, heart failure, nutritional status
    Nationell ämneskategori
    Kardiologi
    Identifikatorer
    urn:nbn:se:liu:diva-139105 (URN)10.1097/JCN.0000000000000428 (DOI)000440241700003 ()28574973 (PubMedID)2-s2.0-85020167287 (Scopus ID)
    Tillgänglig från: 2017-07-01 Skapad: 2017-07-01 Senast uppdaterad: 2018-09-27Bibliografiskt granskad
  • 294.
    Andreae, Christina
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    The relationship between physical activity and appetite in heart failure – A cross sectional study2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    Background: Physical activity and appetite are important for maintaining physical health. Yet, sedentary lifestyle and poor appetite are frequently observed in the heart failure (HF) population. However, the relationships between these phenomena are not yet clearly understood. 

    Purpose: To investigate the relationship between physical activity and appetite in patients with stable HF.

    Methods: In this cross sectional study, a consecutive sample of 186 patients with confirmed HF with NYHA class II-IV (median age 72y, 70% men, NYHA class II 61%) participated in the study. Patients were recruited from three HF outpatient clinics in central Sweden. Physical activity measures included total energy expenditure (TEE), active energy expenditure (AEE) above 3 METs, average daily METs and number of steps per day during four days using a validated multi-sensor wearable armband (SenseWear®, Body Monitoring System). Patients also self-reported their physical activity on a ten point numeric rating scale, from extremely low (1) to extremely high (10). Self-reported appetite was measured by Council on Nutrition Appetite Questionnaire (CNAQ), an 8-item instrument (score range 8-40) where CNAQ ≤28 indicate poor appetite. Associations between physical activity and appetite were analyzed by Spearman correlation while differences in physical activity between poor vs good appetite were analyzed using Mann Whitney U test.

    Results: There was a significant positive relationship between physical activity and appetite assessed by TEE (rs=.184, p=.012), AEE of moderate intensity >3 METs (rs=.262, p=.000), number of steps (rs=.292, p=.000), average METs intensity (rs=.249, p=.001), and self- reported physical activity (rs=.191, p =.009). Levels of physical activity in the low appetite group differed significantly from the group with better appetite, this was seen in all physical dimensions, TEE (U=3225, z=-2.26, p=.024), AEE (U=2902, z=-3.178, p=.001), number of steps (U=2706, z=-3.734, p=.000), average METs intensity (U=3128, z=-2.541, p=.011), levels of self-reported physical activity (U=3185, z=-2.47, p=.013).

    Conclusion: This study shows that physical activity is associated with appetite and that levels of physical activity differs between patients with poor and good appetite. These findings has implications for both research and practice and underlines the importance in monitoring both physical activity and appetite. Further research is needed to determine whether interventions targeting physical activity also improve appetite and vice versa in the HF population.

  • 295.
    Andreae, Christina
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Uppsala Univ, Sweden.
    Arestedt, Kristofer
    Linnaeus Univ, Sweden; Res Sect, Sweden.
    Evangelista, Lorraine
    Univ Calif Irvine, CA USA.
    Strömberg, Anna
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US. Univ Calif Irvine, CA USA.
    The relationship between physical activity and appetite in patients with heart failure: A prospective observational study2019Ingår i: European Journal of Cardiovascular Nursing, ISSN 1474-5151, E-ISSN 1873-1953, Vol. 18, nr 5, s. 410-417Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Introduction: Physical activity and appetite are important components for maintaining health. Yet, the association between physical activity and appetite in heart failure (HF) populations is not completely understood. The aim of the present study was to investigate the relationship between physical activity, functional capacity, and appetite in patients with HF. Methods: This was a prospective observational study. In total, 186 patients diagnosed with HF, New York Heart Association (NYHA) class II-IV (mean age 70.7, 30% female), were included. Physical activity was measured using a multi-sensor actigraph for seven days and with a self-reported numeric rating scale. Physical capacity was measured by the six-minute walk test. Appetite was measured using the Council on Nutrition Appetite Questionnaire. Data were collected at inclusion and after 18 months. A series of linear regression analyses, adjusted for age, NYHA class, and B-type natriuretic peptide were conducted. Results: At baseline, higher levels of physical activity and functional capacity were significantly associated with a higher level of appetite in the unadjusted models. In the adjusted models, number of steps (p = 0.019) and the six-minute walk test (p = 0.007) remained significant. At the 18-month follow-up, all physical activity variables and functional capacity were significantly associated with appetite in the unadjusted regression models. In the adjusted models, number of steps (p = 0.001) and metabolic equivalent daily averages (p = 0.040) remained significant. Conclusion: A higher level of physical activity measured by number of steps/day was associated with better self-reported appetite, both at baseline and the 18-month follow-up. Further research is needed to establish causality and explore the intertwined relationship between activity and appetite in patients with HF.

  • 296.
    Andreae, Christina
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Franzén Årestedt, Kristofer
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Evangelista, Lorraine
    Sweden Lorraine Evangelista, RN, Prof, University of California, Irvine, CA, USA.
    Strömberg, Anna
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    The associations between physical activity and appetite in patients with heart failure – a prospective observational study2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    Introduction: Physical activity and appetite both play a crucial role for health outcomes and quality of life in patients with heart failure. Nevertheless, both of these key functions are frequently decreased in patients with heart failure. Whilst most attention focuses independently on the physical activity levels, the associations with appetite has been insufficiently investigated. The aim was therefore to explore the associations between physical activity and appetite in community dwelling heart failure patients.

    Methods: This prospective observational study consisted of 186 patients with symptomatic heart failure of whom 56 (30%) were women and 130 (70%) were men. Mean age was 70.7 (SD=11 years), the majority had NYHA-class II, 114 (63%). Objective and subjective methods were used to measure physical activity include a wearable actigraph (SenceWear) for 4 days and six minutes’ walk test. The actigraph calculate total energy expenditure, active energy expenditure, number of steps and METs daily average index. Patients also stated their physical activity level on a numeric rating scale. A self-reported questionnaire, the Council on Nutrition Appetite Questionnaire was used to assess appetite. Simple linear regression was conducted to explore the associations between physical activity and appetite at baseline and at 18-month follow-up.

    Results: In general, the levels of physical activity in this sample was low and appetite was poor. There was a significant association between objective physical activity measures and appetite at baseline ranging between (p=<0.001-0.041). The number of steps and walking distance had the strongest association, each explaining 6% and 7% of the total variance in appetite. At the 18-month follow-up, all objective and subjective physical activity measures were associated with appetite (p=0.001-0.035) with the number of steps being most strongly associated (p=<0.001) explaining 14% of the total variation in appetite.

    Conclusions: Patients with heart failure who are more physically active experiences better appetite. These findings underscore the importance of placing greater attention on both physical activity and appetite in clinical practice as these factors has implications for patient’s health outcomes. Further longitudinally oriented studies are needed to determine whether there is a causal relationship between physical activity and appetite in heart failure populations.

    Keywords: Appetite, Heart Failure, Physical activity

  • 297.
    Andreae, Christina
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Centre for Clinical Research Sörmland, Uppsala University, Eskilstuna, Sweden.
    Strömberg, Anna
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Chung, Misook L
    College of Nursing, University of Kentucky, Lexington, USA.
    Hjelm, Carina
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Thorax-kärlkliniken i Östergötland.
    Årestedt, Kristofer
    Linnaeus University, Kalmar, Kalmar County Hospital, Kalmar Sweden.
    Depressive Symptoms Moderate the Association Between Appetite and Health Status in Patients With Heart Failure2018Ingår i: Journal of Cardiovascular Nursing, ISSN 0889-4655, E-ISSN 1550-5049, Vol. 33, nr 2, s. E15-E20Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: Decreased appetite and depressive symptoms are clinical problems in patients with heart failure. Both may result in impaired health status.

    OBJECTIVE: The aims of this study were to investigate the association between appetite and health status in patients with heart failure and to explore whether depressive symptoms moderate this association.

    METHODS: In this cross-sectional study, patients with heart failure (n = 186; mean age, 71 years), New York Heart Association class II to IV, participated. Data on appetite (Council of Nutrition Appetite Questionnaire), depressive symptoms (Patient Health Questionnaire-9), and health status (EQ-5D 3-level scale [EQ-5D-3L] descriptive system, EQ-5D-3L index, and EQ Visual Analog Scale) were collected by self-rating questionnaires. Pearson correlation was used to investigate the association between appetite and health status. Multiple regression was performed to examine whether depressive symptoms moderate the association between appetite and health status.

    RESULTS: There was a significant association between appetite and health status for EQ-5D-3L descriptive system, mobility (P < .001), pain/discomfort (P < .001), and anxiety/depression (P < .001). This association was also shown in EQ-5D-3L index (P < .001) and EQ Visual Analog Scale (P < .001). Simple slope analysis showed that the association between appetite and health status was only significant for patients without depressive symptoms (B = 0.32, t = 4.66, P < .001).

    CONCLUSIONS: Higher level of appetite was associated with better health status. In moderation analysis, the association was presented for patients without depressive symptoms. Decreased appetite is an important sign of poor health status. To improve health status, health professionals should have greater attention on appetite, as well on signs of depressive symptoms.

  • 298.
    Andreae, Christina
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Strömberg, Anna
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Chung, Misook
    College of Nursing, University of Kentucky, Lexington, Kentucky, USA.
    Lennie, Terry
    College of Nursing, University of Kentucky, Lexington, Kentucky, USA.
    Årestedt, Kristofer
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Depressive symptoms as a moderator and mediator of the relationship between physical activity, appetite and perceived health among patients with heart failure2015Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Purpose: Depressive symptoms have been shown to directly influence perceived health among persons with heart failure (HF). Decreased physical activity and appetite may also be predictive of poor perceived health.The purposes of this study were to determine whether appetite and physical activity predicted perceived health, and to determine whether depressive symptoms mediated or moderated their relationship with perceived health.

    Methods: A total of 184 patients with mild to severe HF were included. Appetite, depressive symptoms and perceived health were measured by self-report questionnaires (Council on Nutrition Appetite Questionnaire, Patient Health Questionnaire and EuroQol 5D index). Physical activity was measured by SenceWearTM for 6 days. A separate series of multiple linear regression analyses were run to determine whether depressive symptoms mediated or moderated the relationship between physical activity and perceived health, and between appetite and perceived health.

    Results: Higher physical activity predicted better perceived health (ß=0.202, p=.006) but the strength of the association decreased (ß=0.13, p=.048) when depressive symptoms were included in the model. There was a significant mediation effect for depressive symptoms on perceived health (sobel=2.03, p=.041) (Fig 1). Appetite was a significant predictor of perceived health. Examination of this association among those with and without depressive symptoms, however showed positive association between appetite and perceived health remained only for patients without depressive symptoms demonstrating a moderating effect (p<.001) (Fig 2).

    Conclusion: Identifying and treating depression simultaneously while addressing appetite and physical activity may be key to improving perceived health among persons with HF.

  • 299.
    Andreae, Christina
    et al.
    Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Uppsala University, Sweden.
    Strömberg, Anna
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Sawatzky, Richard
    Trinity Western University, Canada; Centre Health Evaluat and Outcome Science, Canada.
    Årestedt, Kristofer
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Correction: Psychometric Evaluation of Two Appetite Questionnaires in Patients With Heart Failure (vol 21, pg 954, 2015)2016Ingår i: Journal of Cardiac Failure, ISSN 1071-9164, E-ISSN 1532-8414, Vol. 22, nr 3, s. 245-245Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    n/a

  • 300.
    Andreae, Christina
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten. Uppsala University, Sweden.
    Strömberg, Anna
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Sawatzky, Richard
    Trinity Western University, Canada; Providence Health Care Research Institute, Canada.
    Årestedt, Kristofer
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten.
    Psychometric Evaluation of Two Appetite Questionnaires in Patients With Heart Failure2015Ingår i: Journal of Cardiac Failure, ISSN 1071-9164, E-ISSN 1532-8414, Vol. 21, nr 12, s. 954-958Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Decreased appetite in heart failure (HF) may lead to undemutrition which could negatively influence prognosis. Appetite is a complex clinical issue that is often best measured with the use of self-report instruments. However, there is a lack of self-rated appetite instruments. The Council on Nutrition Appetite Questionnaire (CNAQ) and the Simplified Nutritional Appetite Questionnaire (SNAQ) are validated instruments developed primarily for elderly people. Yet, the psychometric properties have not been evaluated in HF populations. The aim of the present study was to evaluate the psychometric properties of CNAQ and SNAQ in patients with HE Methods and Results: A total of 186 outpatients with reduced ejection fraction and New York Heart Association (NYHA) functional classifications II-IV were included (median age 72 y; 70% men). Data were collected with the use of a questionnaire that included the CNAQ and SNAQ. The psychometric evaluation included data quality, factor structure, construct validity, known-group validity, and internal consistency. Unidimensionality was supported by means of parallel analysis and confirmatory factor analyses (CFAs). The CFA results indicated sufficient model fit. Both construct validity and known-group validity were supported. Internal consistency reliability was acceptable, with ordinal coefficient alpha estimates of 0.82 for CNAQ and 0.77 for SNAQ. Conclusions: CNAQ and SNAQ demonstrated sound psychometric properties and can be used to measure appetite in patients with HF.

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