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  • 1.
    Zwackman, Sammy
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Haggstrom, Jenny
    Umea Univ, Sweden.
    Hagstrom, Emil
    Uppsala Univ, Sweden.
    Jernberg, Tomas
    Danderyd Hosp, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Cty Hosp Ryhov, Sweden.
    Sederholm Lawesson, Sofia
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Leosdottir, Margret
    Skane Univ Hosp, Sweden; Lund Univ, Sweden.
    Ravn-Fischer, Annica
    Univ Gothenburg Inst Med, Sweden; Sahlgrens Univ Hosp, Sweden.
    Eriksson, Marie
    Umea Univ, Sweden.
    Alfredsson, Joakim
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Management and outcome in foreign-born vs native-born patients with myocardial infarction in Sweden2024Ingår i: European Heart Journal - Quality of Care and Clinical Outcomes, ISSN 2058-5225, E-ISSN 2058-1742Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aims Previous studies on disparities in healthcare and outcomes have shown conflicting results. The aim of this study was to assess differences in baseline characteristics, management, and outcomes in myocardial infarction (MI) patients, by country of birth.Methods and results In total, 194 259 MI patients (64% male, 15% foreign-born) from the nationwide SWEDEHEART (The Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies) registry were included and compared by geographic region of birth. The primary outcome was 1-year major adverse cardiovascular events (MACEs) including all-cause death, MI, and stroke. Secondary outcomes were long-term MACE (up to 12 years), the individual components of MACE, 30-day mortality, management, and risk factors. Logistic regression, Cox proportional hazard models, and propensity score match (PSM), accounting for baseline differences, were used. Foreign-born patients were younger, often male, and had a higher cardiovascular (CV) risk factor burden, including smoking, diabetes, and hypertension. In PSM analyses, Asia-born patients had higher likelihood of revascularization [odds ratio 1.16, 95% confidence interval (CI) 1.04-1.30], statins and beta-blocker prescription at discharge, and a 34% lower risk of 30-day mortality. Furthermore, no statistically significant differences were found in primary outcomes except for Asia-born patients having lower risk of 1-year MACE [hazard ratio (HR) 0.85, 95% CI 0.73-0.98], driven by lower mortality (HR 0.72, 95% CI 0.57-0.91). The results persisted over the long-term follow-up.Conclusion This study shows that in a system with universal healthcare coverage in which acute and secondary preventive treatments do not differ by country of birth, foreign-born patients, despite higher CV risk factor burden, will do at least as well as native-born patients. Graphical Abstract

  • 2.
    Zwackman, Sammy
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Leosdottir, Margret
    Skane Univ Hosp, Sweden; Lund Univ, Sweden.
    Hagstrom, Emil
    Uppsala Univ, Sweden.
    Jernberg, Tomas
    Karolinska Inst, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Cty Hosp Ryhov, Sweden.
    Sederholm Lawesson, Sofia
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Michelsen, Halldora Ogmundsdottir
    Ravn-Fischer, Annica
    Gothenburg Univ, Sweden.
    Wallert, John
    Karolinska Inst, Sweden; Stockholm HealthCare Serv, Sweden.
    Alfredsson, Joakim
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Provision of professional interpreters and Heart School attendance for foreign-born compared with native-born myocardial infarction patients in Sweden2024Ingår i: IJC Heart & Vasculature, E-ISSN 2352-9067, Vol. 51, artikel-id 101392Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: Interactive patient education, referred to as Heart School (HS), is an important part of cardiac rehabilitation (CR) after myocardial infarction (MI), which has been associated with improved outcomes. Little is known about HS attendance among foreign-born patients. The aims were to assess; 1) HS attendance in foreign-born versus native-born patients, 2) the association between the provision of professional interpreters and HS attendance, and 3) secondary prevention goal attainment after MI based on HS attendance. Methods: The provision of professional interpreters during post-MI follow-up was assessed by a questionnaire sent to all 78 Swedish CR sites. Patient-specific data was retrieved from the SWEDEHEART registry. The association between the provision of professional interpreters and HS attendance was estimated with logistic regression models. HS attendance and attainment of secondary prevention goals by country of birth were investigated. Results: In total, 8377 patients < 75 years (78 % male) were included. Foreign-born (19.8 %) had a higher prevalence of cardiovascular risk factors and were less likely to attend HS (33.7 vs 51.3 %, p < 0.001), adjusted odds ratio (OR) 0.59 (95 % confidence interval (CI) 0.52-0.68), compared with native-born patients. CR centers providing professional interpreters had higher HS attendance among foreign-born (adjusted OR 1.55, 95 % CI 1.20-2.01) but not among native-born patients. Attending HS was similarly associated with improved secondary prevention goal attainment in both groups. Conclusions: Despite similar positive association between HS attendance and attainment of secondary prevention goals, foreign-born patients attended HS less often. With the provision of professional interpreters, HS attendance increased in foreign-born patients.

  • 3.
    Olsen Faresjö, Åshild
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten.
    Segerberg, Henrik
    Linköpings universitet, Institutionen för hälsa, medicin och vård. Linköpings universitet, Medicinska fakulteten.
    Lebena, Andrea
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Faresjö, Tomas
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för prevention, rehabilitering och nära vård. Linköpings universitet, Medicinska fakulteten.
    Cardiovascular and psychosocial risks among patients below age 50 with acute myocardial infarction2023Ingår i: BMC Cardiovascular Disorders, ISSN 1471-2261, E-ISSN 1471-2261, Vol. 23, nr 1, artikel-id 121Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BackgroundDespite improvements in the treatment and prevention of cardiovascular disease since the 1960s, the incidence of cardiovascular diseases among young people has remained the same for many years. This study aimed to compare the clinical and psychosocial attributes of young persons affected by myocardial infarction under the age of 50 years compared to middle-aged myocardial infarction patients 51-65 years old.MethodsData from patients with a documented STEMI or NSTEMI elevated acute myocardial infarction in the age groups up to 65 years, were collected from cardiology clinics at three hospitals in southeast Sweden. The Stressheart study comprised a total of 213 acute myocardial infarction patients, of which n = 33 (15.5%) were under 50 years of age and n = 180 (84.5%) were middle-aged, (51-65 years). These acute myocardial infarction patients filled in a questionnaire at discharge from the hospital and further information through documentation of data in their medical records.ResultsBlood pressure was significantly higher in young compared to middle-aged patients. For diastolic blood pressure (p = 0.003), systolic blood pressure (p = 0.028), and mean arterial pressure (p = 0.005). Young AMI patients had a higher (p = 0.030) body mass index (BMI) than the middle-aged. Young AMI patients were reported to be more stressed (p = 0.042), had more frequently experienced a serious life event the previous year (p = 0.029), and felt less energetic (p = 0.044) than middle-aged AMI patients.ConclusionsThis study revealed that persons under the age of 50 affected by acute myocardial infarction exhibit traditional cardiovascular risk factors like high blood pressure, and higher BMI, and were more exposed to some psychosocial risk factors. The risk profile of young persons under age 50 affected by AMI was in these respects more exaugurated than for middle-aged persons with AMI. This study underlines the importance of the early discovery of those at increased risk and encourages preventative actions to focus on both clinical and psychosocial risk factors.

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  • 4.
    El-Saadi, Walid
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Engvall, Jan
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Hjärtcentrum, Fysiologiska kliniken US.
    Alfredsson, Joakim
    Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US. Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Martins, Marcelo
    Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping. Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten.
    Sederholm Lawesson, Sofia
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Zaman, Shaikh Faisal
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Ebbers, Tino
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Kihlberg, Johan
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Correction: A head-to-head comparison of myocardial strain by fast-strain encoding and feature tracking imaging in acute myocardial infarction (vol 9, 949440, 2022)2023Ingår i: Frontiers in Cardiovascular Medicine, E-ISSN 2297-055X, Vol. 10, artikel-id 1140214Artikel i tidskrift (Övrigt vetenskapligt)
  • 5.
    El-Saadi, Walid
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Engvall, Jan
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Fysiologiska kliniken US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Maret, Eva
    Karolinska Inst, Sweden.
    Four- to seven-year follow-up of pharmacological postconditioning with mangafodipir as an adjunct to primary PCI in ST-segment elevation myocardial infarction2023Ingår i: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 43, nr 6, s. 413-420Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    IntroductionAdverse left ventricular remodelling (AR) develops over time in approximately 30% of patients with a history of coronary artery disease. AR manifests as a structural change in the left ventricle (LV) in terms of increased volumes and reduced left ventricular ejection fraction (LVEF). Manganese dipyridoxyl diphosphate (mangafodipir) has demonstrated interesting cardioprotective features in acute myocardial ischaemia. Pharmacological postconditioning (PP) with mangafodipir as an adjunct to primary percutaneous coronary intervention may possibly reduce the development of AR over time in ST-elevation myocardial infarction (STEMI). The aim of this 4-7-year follow-up study is to investigate the potential benefits of PP with mangafodipir in STEMI patients. MethodThirteen out of the initial 20 patients that were included in the primary study of Karlsson et al. were followed up between April and June 2017. The study group underwent review of the hospital records, a clinical examination with ECG and blood sample analysis before cardiac magnetic resonance examination of the patient. LVEF, left ventricular diastolic volume, left ventricular end systolic volume, LV mass and myocardial strain in all directions were computed. ResultsThe PP group showed a decrease in LV volume, mass and higher LVEF at follow-up (p < 0.05) while the individual response of the placebo group showed features that are seen in AR. Although there was no difference in myocardial strain, measurement for the PP-group was higher in absolute terms. ConclusionPharmacological postconditioning with mangafodipir in STEMI demonstrated cardioprotective features compared to the placebo group at follow-up. This article is protected by copyright. All rights reserved.

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  • 6.
    El-Saadi, Walid
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Engvall, Jan
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Hjärtcentrum, Fysiologiska kliniken US.
    Alfredsson, Joakim
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Martins, Marcelo
    Linköpings universitet, Institutionen för hälsa, medicin och vård. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping.
    Sederholm Lawesson, Sofia
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Faisal Zaman, Shaikh
    Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin.
    Ebbers, Tino
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Kihlberg, Johan
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Region Östergötland, Diagnostikcentrum, Röntgenkliniken i Linköping.
    A head-to-head comparison of myocardial strain by fast-strain encoding and feature tracking imaging in acute myocardial infarction2022Ingår i: Frontiers in Cardiovascular Medicine, E-ISSN 2297-055X, Vol. 9Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BackgroundMyocardial infarction (MI) is a major cause of heart failure. Left ventricular adverse remodeling is common post-MI. Several studies have demonstrated a correlation between reduced myocardial strain and the development of adverse remodeling. Cardiac magnetic resonance (CMR) with fast-strain encoding (fast-SENC) or feature tracking (FT) enables rapid assessment of myocardial deformation. The aim of this study was to establish a head-to-head comparison of fast-SENC and FT in post-ST-elevated myocardial infarction (STEMI) patients, with clinical 2D speckle tracking echocardiography (2DEcho) as a reference. MethodsThirty patients treated with primary percutaneous coronary intervention for STEMI were investigated. All participants underwent CMR examination with late gadolinium enhancement, cine-loop steady-state free precession, and fast-SENC imaging using a 1.5T scanner as well as a 2DEcho. Global longitudinal strain (GLS), segmental longitudinal strain (SLS), global circumferential strain (GCS), and segmental circumferential strain (SCS) were assessed along with the MI scar extent. ResultsThe GCS measurements from fast-SENC and FT were nearly identical: the mean difference was 0.01 (2.5)% (95% CI - 0.92 to 0.95). For GLS, fast-SENC values were higher than FT, with a mean difference of 1.8 (1.4)% (95% CI 1.31-2.35). Tests of significance for GLS did not show any differences between the MR methods and 2DEcho. Average strain in the infarct-related artery (IRA) segments compared to the remote myocardium was significantly lower for the left anterior descending artery and right coronary artery culprits but not for the left circumflex artery culprits. Fast-SENC displayed a higher area under the curve for detecting infarcted segments than FT for both SCS and SLS. ConclusionGLS and GCS did not significantly differ between fast-SENC and FT. Both showed acceptable agreement with 2DEcho for longitudinal strain. Segments perfused by the IRA showed significantly reduced strain values compared to the remote myocardium. Fast-SENC presented a higher sensitivity and specificity for detecting infarcted segments than FT.

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  • 7.
    Lewin, Nongnit Laytragoon
    et al.
    Ryhov Hosp, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Hosp, Sweden.
    Robinsson, David
    Ryhov Hosp, Sweden.
    Fagerberg, Matida
    Ryhov Hosp, Sweden.
    Kentsson, Magnus
    Ryhov Hosp, Sweden.
    Sayardoust, Shariel
    Ryhov Hosp, Sweden.
    Nilsson, Mats
    Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för hälsa, medicin och vård. Academy of Health and Care, Region Jönköping, Jönköping, Sweden.
    Shamoun, Levar
    Ryhov Hosp, Sweden.
    Andersson, Bengt-Ake
    Ryhov Hosp, Sweden.
    Lofgren, Sture
    Ryhov Hosp, Sweden.
    Rutqvist, Lars Erik
    Swedish Match AB, Sweden.
    Lewin, Freddi
    Ryhov Hosp, Sweden.
    Influence of single nucleotide polymorphisms among cigarette smoking and non-smoking patients with coronary artery disease, urinary bladder cancer and lung cancer2021Ingår i: PLOS ONE, E-ISSN 1932-6203, Vol. 16, nr 1, artikel-id e0243084Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Introduction Cigarette smoke is suggested to be a risk factor for coronary artery disease (CAD), urinary bladder cancer (UBCa) or lung cancer (LCa). However, not all heavy smokers develop these diseases and elevated cancer risk among first-degree relatives suggests an important role of genetic factor. Methods Three hundred and ten healthy blood donors (controls), 98 CAD, 74 UBCa and 38 LCa patients were included in this pilot study. The influence of 92 single nucleotide polymorphisms (SNPs) and impact of cigarette smoking were analysed. Results Out of 92 SNPs tested, differences in distribution of 14 SNPs were detected between controls and patient groups. Only CTLA4 rs3087243 showed difference in both CAD and UBCa patient group compared to control group. Stratified by smoking status, the impact of smoking was associated to frequencies of 8, 3 and 4 SNPs in CAD, UBCa, LCa patients, respectively. None of these 92 SNPs showed a statistically significant difference to more than one type of disease among smoking patients. In non-smoking patients, 7, 3 and 6 SNPs were associated to CAD, UBCa, LCa, respectively. Out of these 92 SNPs, CTLA4 rs3087243 was associated to both non-smoking CAD and UBCa. The XRCC1 rs25487 was associated to both non-smoking UBCa and LCa. Conclusion SNPs might be important risk factors for CAD, UBCa and LCa. Distribution of the SNPs was specific for each patient group, not a random event. Impact of cigarette smoking on the disease was associated to the specific SNP sequences. Thus, smoking individuals with SNPs associated to risk of these serious diseases is an important target group for smoking cessation programs.

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  • 8.
    Huynh, Jenny
    et al.
    Ryhov Cty Hosp, Sweden.
    Barmano, Neshro
    Ryhov Cty Hosp, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Ryhov Cty Hosp, Sweden.
    Stomby, Andreas
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för prevention, rehabilitering och nära vård. Linköpings universitet, Medicinska fakulteten. Unicare Lakarhuset, Sweden.
    Sex and age differences in the incidence of acute myocardial infarction during the COVID-19 pandemic in a Swedish health-care region without lockdown: a retrospective cohort study2021Ingår i: Lancet Healthy Longevity, ISSN 2666-7568, Vol. 2, nr 5, s. E283-E289Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background The incidence of acute myocardial infarction has decreased during the COVID-19 pandemic, but sex and age differences in this change in incidence have not been tested. Thus, we aimed to compare the incidence of acute myocardial infarction in a health-care region in Sweden during the COVID-19 pandemic with previous years and to evaluate sex and age differences. Methods We did a retrospective, observational cohort study using data from a national registry of patients admitted to coronary care units in Sweden. All patients admitted to one of three hospitals in Region Jonkoping County with a diagnosis of acute myocardial infarction during the COVID-19 pandemic (March 1 to July 31, 2020) or reference period (March 1 to July 31, 2017-19) were included. The incidence of acute myocardial infarction (ST-elevation and non-ST-elevation) was calculated for both study periods. Participants were grouped according to sex and age (<70 years vs >= 70 years). The incidence and the incidence rate ratio (IRR) between the two study periods was calculated for each group and compared between groups using the Breslow-Day test. Findings The study included 1088 participants, 846 who were admitted for acute myocardial infarction during the reference period and 242 who were admitted during the COVID-19 pandemic period. The IRR of acute myocardial infarction for the COVID-19 period compared with the reference period was 0.85 (95% CI 0.73-0.98). The IRR for acute myocardial infarction was significantly lower among women aged 70 years or older (0.56 [0.40-0.78]) than among men aged 70 years or older (0.97 [0.77-1.23]; p=0.0074). Interpretation The incidence of acute myocardial infarction decreased predominantly among women aged 70 years or older during the COVID-19 pandemic. This highlights potential sex differences in health effects of the COVID-19 pandemic, which should be further elucidated. Copyright (C) 2021 The Author(s). Published by Elsevier Ltd.

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  • 9.
    Gawel, Danuta
    et al.
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Serra I Musach, Jordi
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Lilja, Sandra
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Aagesen, Jesper
    Reg Jonkoping Cty, Sweden.
    Arenas, Alex
    Univ Rovira and Virgili, Spain.
    Asking, Bengt
    Reg Jonkoping Cty, Sweden.
    Bengner, Malin
    Reg Jonkoping Cty, Sweden.
    Bjorkander, Janne
    Reg Jonkoping Cty, Sweden.
    Biggs, Sophie
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Ernerudh, Jan
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för inflammation och infektion. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk immunologi och transfusionsmedicin.
    Hjortswang, Henrik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Mag- tarmmedicinska kliniken.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Reg Jonkoping Cty, Sweden.
    Köpsen, Mattias
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Jung Lee, Eun Jung
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Yonsei Univ, South Korea.
    Lentini, Antonio
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Biologi. Linköpings universitet, Tekniska fakulteten.
    Li, Xinxiu
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Magnusson, Mattias
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Martinez, David
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Matussek, Andreas
    Reg Jonkoping Cty, Sweden; Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Nestor, Colm
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Schäfer, Samuel
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Seifert, Oliver
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Reg Jonkoping Cty, Sweden.
    Sonmez, Ceylan
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för molekylär medicin och virologi. Linköpings universitet, Medicinska fakulteten.
    Stjernman, Henrik
    Reg Jonkoping Cty, Sweden.
    Tjärnberg, Andreas
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Wu, Simon
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Åkesson, Karin
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Reg Jonkoping Cty, Sweden.
    Shalek, Alex K.
    MIT, MA 02139 USA; MIT, MA 02139 USA; MIT, MA 02139 USA; Broad Inst MIT and Harvard, MA 02142 USA; Ragon Inst MGH MIT and Harvard, MA USA.
    Stenmarker, Margaretha
    Reg Jonkoping Cty, Sweden; Inst Clin Sci, Sweden.
    Zhang, Huan
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Gustafsson, Mika
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Benson, Mikael
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, H.K.H. Kronprinsessan Victorias barn- och ungdomssjukhus.
    Correction: A validated single-cell-based strategy to identify diagnostic and therapeutic targets in complex diseases (vol 11, 47, 2019)2020Ingår i: Genome Medicine, ISSN 1756-994X, E-ISSN 1756-994X, Vol. 12, nr 1, artikel-id 37Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    An amendment to this paper has been published and can be accessed via the original article.

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  • 10.
    Faresjö, Tomas
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för prevention, rehabilitering och nära vård. Linköpings universitet, Medicinska fakulteten.
    Strömberg, Susanna
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för prevention, rehabilitering och nära vård. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Primärvårdscentrum, Vårdcentralen Valla.
    Jones, Mike
    Macquarie Univ, Australia.
    Stomby, Andreas
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för prevention, rehabilitering och nära vård. Linköpings universitet, Medicinska fakulteten.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Östgren, Carl Johan
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för prevention, rehabilitering och nära vård. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Primärvårdscentrum, Vårdcentralen Ekholmen.
    Olsen Faresjö, Åshild
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Theodorsson, Elvar
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för klinisk kemi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk kemi.
    Elevated levels of cortisol in hair precede acute myocardial infarction2020Ingår i: Scientific Reports, E-ISSN 2045-2322, Vol. 10, nr 1, artikel-id 22456Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Long term stress exposure is typical for modern societies and might trigger different diseases. This case-control study reveals that persons who had suffered an acute myocardial infarction (AMI) had elevated cortisol concentrations in the month before the acute event. Middle-aged patients admitted to cardiology clinics with acute myocardial infarction (AMI) (n=174) were compared to 3156 controls from a population-based cohort in southeast Sweden. The median Hair Cortisol Concentrations (HCC) for those who had suffered an AMI was 53.2 pg/mg compared to 22.2 pg/mg for the control group (p<0.001). In bivariate analysis, higher levels of HCC were strongly (OR=5.69) and statistically significantly associated with current AMI status. The discrimination of cases with AMI from controls remained statistically significant (OR=5.04) even after controlling for established cardiovascular risk factors in a multivariate analysis. Middle-aged persons with acute myocardial infarction had significantly elevated cortisol levels during the month before the cardiac event. This was evident for both men and women. The biomarker cortisol concentration was independently and statistically significantly related to AMI. Chronic stress seems to be a new promising risk factor for AMI.

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  • 11.
    Fernlund, Eva
    et al.
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för kirurgi, ortopedi och onkologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, H.K.H. Kronprinsessan Victorias barn- och ungdomssjukhus. Lund Univ, Sweden.
    Kissopoulou, Antheia
    Linköpings universitet, Institutionen för hälsa, medicin och vård. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Dept Internal Med.
    Green, Henrik
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten. Natl Board Forens Med, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Department of Internal Medicine, County Council of Jönköping, Sweden.
    Ellegård, Rada
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Klang Årstrand, Hanna
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Jonasson, Jon
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Gunnarsson, Cecilia
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik. Region Östergötland, Regionledningskontoret, Övr Regionledningskontoret.
    Hereditary Hypertrophic Cardiomyopathy in Children and Young Adults-The Value of Reevaluating and Expanding Gene Panel Analyses2020Ingår i: Genes, ISSN 2073-4425, E-ISSN 2073-4425, Vol. 11, nr 12, artikel-id 1472Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Introduction: Sudden cardiac death (SCD) and early onset cardiomyopathy (CM) in the young will always lead to suspicion of an underlying genetic disorder. Incited by the rapid advances in genetic testing for disease we have revisited families, which previously tested "gene-negative" for familial predominantly pediatric CM, in hopes of finding a causative gene variant. Methods: 10 different families with non-syndromic pediatric CM or hypertrophic cardiomyopathy (HCM) with severe disease progression and/or heredity for HCM/CM related SCD with "gene-negative" results were included. The index patient underwent genetic testing with a recently updated gene panel for CM and SCD. In case of failure to detect a pathogenic variant in a relevant gene, the index patient and both parents underwent clinical (i.e., partial) exome sequencing (trio-exome) in order to catch pathogenic variants linked to the disease in genes that were not included in the CM panel. Results: The mean age at clinical presentation of the 10 index cases was 12.5 years (boys 13.4 years, n = 8; girls 9 years, n = 2) and the family history burden was 33 HCM/CM cases including 9 HCM-related SCD and one heart transplantation. In 5 (50%) families we identified a genetic variant classified as pathogenic or likely pathogenic, in accordance with the American College of Medical Genetics and Genomics (ACMG) criteria, in MYH7 (n = 2), RBM20, ALPK3, and PGM1, respectively, and genetic variants of unknown significance (VUS) segregating with the disease in an additional 3 (30%) families, in MYBPC3, ABCC9, and FLNC, respectively. Conclusion: Our results show the importance of renewed thorough clinical assessment and the necessity to challenge previous genetic test results with more comprehensive updated gene panels or exome sequencing if the initial test failed to identify a causative gene for early onset CM or SCD in children. In pediatric cardiomyopathy cases when the gene panel still fails to detect a causative variant, a trio exome sequencing strategy might resolve some unexplained cases, especially if a multisystemic condition is clinically missed.

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  • 12.
    Kissopoulou, Antheia
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Sweden.
    Fernlund, Eva
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för kirurgi, ortopedi och onkologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, H.K.H. Kronprinsessan Victorias barn- och ungdomssjukhus. Lund Univ, Sweden.
    Holmgren, Christina
    Linköpings universitet, Institutionen för hälsa, medicin och vård. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Sweden.
    Isaksson, Eira
    Linköpings universitet, Institutionen för hälsa, medicin och vård. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Sweden.
    Green, Henrik
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten. Natl Board Forens Med, Dept Forens Genet and Forens Toxicol, Linkoping, Sweden.
    Jonasson, Jon
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Ellegård, Rada
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Klang Årstrand, Hanna
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Svensson, Anneli
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärtcentrum, Kardiologiska kliniken US.
    Gunnarsson, Cecilia
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för diagnostik och specialistmedicin. Region Östergötland, Diagnostikcentrum, Klinisk genetik. Region Östergötland, Regionledningskontoret, Övr Regionledningskontoret.
    Monozygotic twins with myocarditis and a novel likely pathogenic desmoplakin gene variant2020Ingår i: ESC Heart Failure, E-ISSN 2055-5822, Vol. 7, nr 3, s. 1210-1216Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Myocarditis most often affects otherwise healthy athletes and is one of the leading causes of sudden death in children and young adults. Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a genetically determined heart muscle disorder with increased risk for paroxysmal ventricular arrhythmias and sudden cardiac death. The clinical picture of myocarditis and ARVC may overlap during the early stages of cardiomyopathy, which may lead to misdiagnosis. In the literature, we found several cases that presented with episodes of myocarditis and ended up with a diagnosis of arrhythmogenic cardiomyopathy, mostly of the left predominant type. The aim of this case presentation is to shed light upon a possible link between myocarditis, a desmoplakin (DSP) gene variant, and ARVC by describing a case of male monozygotic twins who presented with symptoms and signs of myocarditis at 17 and 18 years of age, respectively. One of them also had a recurrent episode of myocarditis. The twins and their family were extensively examined including electrocardiograms (ECG), biochemistry, multimodal cardiac imaging, myocardial biopsy, genetic analysis, repeated cardiac magnetic resonance (CMR) and echocardiography over time. Both twins presented with chest pain, ECG with slight ST-T elevation, and increased troponin T levels. CMR demonstrated an affected left ventricle with comprehensive inflammatory, subepicardial changes consistent with myocarditis. The right ventricle did not appear to have any abnormalities. Genotype analysis revealed a nonsense heterozygous variant in the desmoplakin (DSP) gene [NM_004415.2:c.2521_2522del (p.Gln841Aspfs*9)] that is considered likely pathogenic and presumably ARVC related. There was no previous family history of heart disease. There might be a common pathophysiology of ARVC, associated with desmosomal dysfunction, and myocarditis. In our case, both twins have an affected left ventricle without any right ventricular involvement, and they are carriers of a novel DSP variant that is likely associated with ARVC. The extensive inflammation of the LV that was apparent in the CMR may or may not be the primary event of ARVC. Nevertheless, our data suggest that irrespective of a possible link here to ARVC, genetic testing for arrhythmogenic cardiomyopathy might be advisable for patients with recurrent myocarditis associated with a family history of myocarditis.

  • 13.
    Gawel, Danuta
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Serra-Musach, Jordi
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Lilja, Sandra
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Aagesen, Jesper
    Reg Jonkoping Cty, Sweden.
    Arenas, Alex
    Univ Rovira and Virgili, Spain.
    Asking, Bengt
    Reg Jonkoping Cty, Sweden.
    Bengner, Malin
    Reg Jonkoping Cty, Sweden.
    Bjorkander, Janne
    Reg Jonkoping Cty, Sweden.
    Biggs, Sophie
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Ernerudh, Jan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk immunologi och transfusionsmedicin.
    Hjortswang, Henrik
    Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Magtarmmedicinska kliniken. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Reg Jonkoping Cty, Sweden.
    Köpsén, Mattias
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Jung Lee, Eun Jung
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Yonsei Univ, South Korea.
    Lentini, Antonio
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Li, Xinxiu
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Magnusson, Mattias
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Martinez, David
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Matussek, Andreas
    Reg Jonkoping Cty, Sweden; Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Nestor, Colm
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Schäfer, Samuel
    Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa.
    Seifert, Oliver
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Reg Jonkoping Cty, Sweden.
    Sonmez, Ceylan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten.
    Stjernman, Henrik
    Reg Jonkoping Cty, Sweden.
    Tjärnberg, Andreas
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Wu, Simon
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Åkesson, Karin
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Reg Jonkoping Cty, Sweden.
    Shalek, Alex K.
    MIT, MA 02139 USA; Broad Inst MIT and Harvard, MA 02142 USA; Ragon Inst MGH MIT and Harvard, MA USA.
    Stenmarker, Margaretha
    Reg Jonkoping Cty, Sweden; Inst Clin Sci, Sweden.
    Zhang, Huan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Gustafsson, Mika
    Linköpings universitet, Institutionen för fysik, kemi och biologi, Bioinformatik. Linköpings universitet, Tekniska fakulteten.
    Benson, Mikael
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, H.K.H. Kronprinsessan Victorias barn- och ungdomssjukhus Linköping/Motala.
    A validated single-cell-based strategy to identify diagnostic and therapeutic targets in complex diseases2019Ingår i: Genome Medicine, ISSN 1756-994X, E-ISSN 1756-994X, Vol. 11, artikel-id 47Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background

    Genomic medicine has paved the way for identifying biomarkers and therapeutically actionable targets for complex diseases, but is complicated by the involvement of thousands of variably expressed genes across multiple cell types. Single-cell RNA-sequencing study (scRNA-seq) allows the characterization of such complex changes in whole organs.

    Methods

    The study is based on applying network tools to organize and analyze scRNA-seq data from a mouse model of arthritis and human rheumatoid arthritis, in order to find diagnostic biomarkers and therapeutic targets. Diagnostic validation studies were performed using expression profiling data and potential protein biomarkers from prospective clinical studies of 13 diseases. A candidate drug was examined by a treatment study of a mouse model of arthritis, using phenotypic, immunohistochemical, and cellular analyses as read-outs.

    Results

    We performed the first systematic analysis of pathways, potential biomarkers, and drug targets in scRNA-seq data from a complex disease, starting with inflamed joints and lymph nodes from a mouse model of arthritis. We found the involvement of hundreds of pathways, biomarkers, and drug targets that differed greatly between cell types. Analyses of scRNA-seq and GWAS data from human rheumatoid arthritis (RA) supported a similar dispersion of pathogenic mechanisms in different cell types. Thus, systems-level approaches to prioritize biomarkers and drugs are needed. Here, we present a prioritization strategy that is based on constructing network models of disease-associated cell types and interactions using scRNA-seq data from our mouse model of arthritis, as well as human RA, which we term multicellular disease models (MCDMs). We find that the network centrality of MCDM cell types correlates with the enrichment of genes harboring genetic variants associated with RA and thus could potentially be used to prioritize cell types and genes for diagnostics and therapeutics. We validated this hypothesis in a large-scale study of patients with 13 different autoimmune, allergic, infectious, malignant, endocrine, metabolic, and cardiovascular diseases, as well as a therapeutic study of the mouse arthritis model.

    Conclusions

    Overall, our results support that our strategy has the potential to help prioritize diagnostic and therapeutic targets in human disease.

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  • 14.
    Isaksson, Rose-Marie
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Department of Research, Region Norrbotten County, Luleå, Sweden.
    Sederholm Lawesson, Sofia
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Thylén, Ingela
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Swahn, Eva
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Hellström Ängerud, K.
    Umeå University, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US. Region Jönköping County, Sweden.
    Geographical Diversities in Symptoms, Actions and Prehospital Delay Times in Swedish ST-Elevation Myocardial Infarction(STEMI) Patients: A Descriptive Multicenter Cross-Sectional Survey Study2019Ingår i: Insights of Cardiology Open Access, artikel-id 100001Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Geographical variations in cardiovascular mortality have been reported in Sweden as well as in other countries. Little attention has been given to possible variations in symptoms, actions and pre-hospital delay times in ST-elevation myocardial infarction (STEMI) patients, as a reason for this diversity. We aimed to study whether STEMI patients from the northern and southern parts of Sweden differ in symptoms and actions that may affect the pre-hospital delay times.

    Methods: SymTime was a multicentre cross-sectional survey study where STEMI patients admitted to the coronary care unit completed a validated questionnaire within 24 hours after admission. In total, 531 patients were included, 357 in the southern and 174 in the northern part of Sweden.

    Results: There were no significant differences in age. However, patients in the north had more often hypertension (52 vs 42%, p=0.02) or other concomitant comorbidities (24 vs 14%, p=0.01). Patients in the south experienced more anxiety (14 vs. 7%, p=0.01) and fear (23 vs. 14%, p=0.02) and more often contacted the emergency medical services (EMS) as first medical contact (FMC) (54 vs 44%, p=0.05). There were no differences in other main or associated symptoms or in pre-hospital delay times. 

    Conclusions: Patients with STEMI in the southern vs. the northern part of Sweden had more anxiety and fear, despite that they were less often alone at onset of symptoms. There were no differences in pre-hospital delay times. Although patients from the southern region contacted EMS as their FMC more frequently, it is still worrying that too few patients utilize the EMS.

  • 15.
    Barmano, Neshro
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Cty Hosp Ryhov, Sweden.
    Charitakis, Emmanouil
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Cty Hosp Ryhov, Sweden.
    Nyström, Fredrik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Primärvårdscentrum, Vårdcentralen Cityhälsan Centrum.
    Walfridsson, Håkan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Walfridsson, Ulla
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Predictors of improvement in arrhythmia-specific symptoms and health-related quality of life after catheter ablation of atrial fibrillation2019Ingår i: Clinical Cardiology, ISSN 0160-9289, E-ISSN 1932-8737, Vol. 42, nr 2, s. 247-255Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background The primary goal of radiofrequency ablation (RFA) of atrial fibrillation (AF) is to improve symptoms and health-related quality of life (HRQoL). However, most studies have focused on predictors of AF recurrence rather than on predictors of improvement in symptoms and HRQoL. Hypothesis We sought to explore predictors of improvement in arrhythmia-specific symptoms and HRQoL after RFA of AF, and to evaluate the effects on symptoms, HRQoL, anxiety, and depression. Methods We studied 192 patients undergoing their first RFA of AF. The Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36), arrhythmia-specific questionnaire in tachycardia and arrhythmia (ASTA), and hospital anxiety and depression scale (HADS) questionnaires were filled out at baseline, at 4 months, and at a 1-year follow-up. Results All questionnaire scale scores improved significantly over time. In the ASTA symptom scale score, female gender and amp;gt; 10 AF episodes the month before RFA were significant positive predictors of improvement, while diabetes and AF recurrence within 12 months after RFA were significant negative predictors (R-2 = 0.18; P amp;lt; 0.001). In the ASTA HRQoL scale score, the presence of heart failure and amp;gt; 10 AF episodes the month before RFA were significant positive predictors of improvement, while diabetes, maximum left atrial volume and AF recurrence were significant negative predictors (R-2 = 0.20; P amp;lt; 0.001). Conclusion Left atrial volume, gender, diabetes, heart failure, the frequency of AF attacks prior to RFA, and recurrence of AF after RFA were significant factors affecting improvement in symptoms and HRQoL after RFA of AF. Future studies are warranted to confirm these findings.

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  • 16.
    Barmano, Neshro
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Department of Internal Medicine, County Hospital Ryhov, Jönköping, Sweden,.
    Charitakis, Emmanouil
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Kronstrand, Robert
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Medicinska fakulteten. National Board of Forensic Medicine, Linko¨ping, Sweden.
    Walfridsson, Ulla
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Department of Internal Medicine, County Hospital Ryhov, Jönköping, Sweden.
    Walfridsson, Håkan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US. Linköpings universitet, Medicinska fakulteten.
    Nyström, Fredrik H.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Primärvårdscentrum, Vårdcentralen Cityhälsan Centrum, Norrköping.
    The association between alcohol consumption, cardiac biomarkers, left atrial size and re-ablation in patients with atrial fibrillation referred for catheter ablation2019Ingår i: PLOS ONE, E-ISSN 1932-6203, Vol. 14, nr 4, artikel-id e0215121Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background

    Information on alcohol consumption in patients undergoing radiofrequency ablation (RFA) of atrial fibrillation (AF) is often limited by the reliance on self-reports. The aim of this study was to describe the long-term alcohol consumption, measured as ethyl glucuronide in hair (hEtG), in patients undergoing RFA due to AF, and to examine potential associations with cardiac biomarkers, left atrial size and re-ablation within one year after the initial RFA.

    Methods

    The amount of hEtG was measured in patients referred for RFA, and a cut-off of 7 pg/mg was used. N-terminal pro B-type natriuretic peptide (NT-proBNP) and the mid-regional fragment of pro atrial natriuretic peptide (MR-proANP) were examined and maximum left atrium volume index (LAVI) was measured. The number of re-ablations was examined up to one year after the initial RFA. Analyses were stratified by gender, and adjusted for age, systolic blood pressure, body mass index, presence of heart failure and heart rhythm for analyses regarding NT-proBNP, MR-proANP and LAVI and heart rhythm being replaced by type of AF for analyses regarding re-ablation.

    Results

    In total, 192 patients were included in the study. Median (25th– 75th percentile) NT-proBNP in men with hEtG ≥ 7 vs. < 7 pg/mg was 250 (96–695) vs. 130 (49–346) pg/ml (p = 0.010), and in women it was 230 (125–480) vs. 230 (125–910) pg/ml (p = 0.810). Median MR-proANP in men with hEtG ≥ 7 vs. < 7 pg/mg was 142 (100–224) vs. 117 (83–179) pmol/l (p = 0.120) and in women it was 139 (112–206) vs. 153 (93–249) pmol/l (p = 0.965). The median of maximum LAVI was 30.1 (26.7–33.9) vs. 25.8 (21.4–32.0) ml/m2 (p = 0.017) in men, and 25.0 (18.9–29.6) vs. 25.7 (21.7–34.6) ml/m2 (p = 0.438) in women, with hEtG ≥ 7 vs. < 7 pg/ml, respectively. Adjusted analyses showed similar results, except for MR-proANP turning out significant in men with hEtG ≥ 7 vs. < 7 pg/mg (p = 0.047). The odds ratio of having a re-ablation was 3.5 (95% CI 1.3–9.6, p = 0.017) in men with hEtG ≥ 7 vs. < 7 pg/mg, while there was no significant difference in women.

    Conclusions

    In male patients with AF and hEtG ≥ 7 pg/mg, NT-proBNP and MR-proANP were higher, LA volumes larger, and there was a higher rate of re-ablations, as compared to men with hEtG < 7 pg/mg. This implies that men with an alcohol consumption corresponding to an hEtG-value ≥ 7, have a higher risk for LA remodelling that could potentially lead to a deterioration of the AF situation.

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  • 17.
    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, 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.

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  • 18.
    Hedberg, Berith
    et al.
    Jonkoping Univ, Sweden; Futurum, Sweden.
    Malm, Dan
    Jonkoping Univ, Sweden; Ryhov Cty Hosp, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Jonkoping Univ, Sweden.
    Årestedt, Kristofer
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Linnaeus Univ, Sweden.
    Broström, Anders
    Region Östergötland, Sinnescentrum, Neurofysiologiska kliniken US. Jonkoping Univ, Sweden.
    Factors associated with confidence in decision making and satisfaction with risk communication among patients with atrial fibrillation2018Ingår i: European Journal of Cardiovascular Nursing, ISSN 1474-5151, E-ISSN 1873-1953, Vol. 17, nr 5, s. 446-455Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Atrial fibrillation is a prevalent cardiac arrhythmia. Effective communication of risks (e.g. stroke risk) and benefits of treatment (e.g. oral anticoagulants) is crucial for the process of shared decision making. Aim: The aim of this study was to explore factors associated with confidence in decision making and satisfaction with risk communication after a follow-up visit among patients who three months earlier had visited an emergency room for atrial fibrillation related symptoms. Methods: A cross-sectional design was used and 322 patients (34% women), mean age 66.1 years (SD 10.5 years) with atrial fibrillation were included in the south of Sweden. Clinical examinations were done post an atrial fibrillation episode. Self-rating scales for communication (Combined Outcome Measure for Risk Communication and Treatment Decision Making Effectiveness), uncertainty in illness (Mishel Uncertainty in Illness Scale-Community), mastery of daily life (Mastery Scale), depressive symptoms (Hospital Anxiety and Depression Scale) and vitality, physical health and mental health (36-item Short Form Health Survey) were used to collect data. Results: Decreased vitality and mastery of daily life, as well as increased uncertainty in illness, were independently associated with lower confidence in decision making. Absence of hypertension and increased uncertainty in illness were independently associated with lower satisfaction with risk communication. Clinical atrial fibrillation variables or depressive symptoms were not associated with satisfaction with confidence in decision making or satisfaction with risk communication. The final models explained 29.1% and 29.5% of the variance in confidence in decision making and satisfaction with risk communication. Conclusion: Confidence in decision making is associated with decreased vitality and mastery of daily life, as well as increased uncertainty in illness, while absence of hypertension and increased uncertainty in illness are associated with risk communication satisfaction.

  • 19.
    Kissopoulou, Antheia
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Sweden.
    Trinks, Cecilia
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Gréen, Anna
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Cty Council Jonkoping, Sweden.
    Jonasson, Jon
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik.
    Gunnarsson, Cecilia
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för cellbiologi. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Diagnostikcentrum, Klinisk genetik. Region Östergötland, Centrum för verksamhetsstöd och utveckling.
    Homozygous missense MYBPC3 Pro873His mutation associated with increased risk for heart failure development in hypertrophic cardiomyopathy2018Ingår i: ESC Heart Failure, E-ISSN 2055-5822, Vol. 5, nr 4, s. 716-723Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Hypertrophic cardiomyopathy (HCM) is a primary autosomal-dominant disorder of the myocardium with variable expressivity and penetrance. Occasionally, homozygous sarcomere genetic variants emerge while genotyping HCM patients. In these cases, a more severe HCM phenotype is generally seen. Here, we report a case of HCM that was diagnosed clinically at 39years of age. Initial symptoms were shortness of breath during exertion. Successively, he developed a wide array of severe clinical manifestations, which progressed to an ominous end-stage heart failure that resulted in heart transplantation. Genotype analysis revealed a missense MYBPC3 variant NM_000256.3:c.2618Camp;gt;A,p.(Pro873His) that presented in the homozygous form. Conflicting interpretations of pathogenicity have been reported for the Pro873His MYBPC3 variant described here. Our patient, presenting with two copies of the variant and devoid of a normal allele, progressed to end-stage heart failure, which supports the notion of a deleterious effect of this variant in the homozygous form.

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  • 20.
    Panayi, Georgios
    et al.
    Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US. Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten.
    Wieringa, Wouter G.
    University of Groningen, Netherlands.
    Alfredsson, Joakim
    Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin.
    Carlsson, Jorg
    Kalmar County Hospital, Sweden; Linnaeus University, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. County Hospital Ryhov, Sweden.
    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.
    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.
    Pundziute, Gabija
    University of Groningen, Netherlands.
    Swahn, Eva
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Computed tomography coronary angiography in patients with acute myocardial infarction and normal invasive coronary angiography2016Ingår i: BMC Cardiovascular Disorders, ISSN 1471-2261, E-ISSN 1471-2261, Vol. 16, nr 78Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Three to five percent of patients with acute myocardial infarction (AMI) have normal coronary arteries on invasive coronary angiography (ICA). The aim of this study was to assess the presence and characteristics of atherosclerotic plaques on computed tomography coronary angiography (CTCA) and describe the clinical characteristics of this group of patients. Methods: This was a multicentre, prospective, descriptive study on CTCA evaluation in thirty patients fulfilling criteria for AMI and without visible coronary plaques on ICA. CTCA evaluation was performed head to head in consensus by two experienced observers blinded to baseline patient characteristics and ICA results. Analysis of plaque characteristics and plaque effect on the arterial lumen was performed. Coronary segments were visually scored for the presence of plaque. Seventeen segments were differentiated, according to a modified American Heart Association classification. Echocardiography performed according to routine during the initial hospitalisation was retrieved for analysis of wall motion abnormalities and left ventricular systolic function in most patients. Results: Twenty-five patients presented with non ST-elevation myocardial infarction (NSTEMI) and five with ST-elevation myocardial infarction (STEMI). Mean age was 60.2 years and 23/30 were women. The prevalence of risk factors of coronary artery disease (CAD) was low. In total, 452 coronary segments were analysed. Eighty percent (24/30) had completely normal coronary arteries and twenty percent (6/30) had coronary atherosclerosis on CTCA. In patients with atherosclerotic plaques, the median number of segments with plaque per patient was one. Echocardiography was normal in 4/22 patients based on normal global longitudinal strain (GLS) and normal wall motion score index (WMSI); 4/22 patients had normal GLS with pathological WMSI; 3/22 patients had pathological GLS and normal WMSI; 11/22 patients had pathological GLS and WMSI and among them we could identify 5 patients with a Takotsubo pattern on echo. Conclusions: Despite a diagnosis of AMI, 80 % of patients with normal ICA showed no coronary plaques on CTCA. The remaining 20 % had only minimal non-obstructive atherosclerosis. Patients fulfilling clinical criteria for AMI but with completely normal ICA need further evaluation, suggestively with magnetic resonance imaging (MRI).

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  • 21.
    Johnston, Nina
    et al.
    Uppsala University, Sweden; Uppsala University, Sweden.
    Bodegard, Johan
    AstraZeneca Nordic Balt, Sweden.
    Jerstrom, Susanna
    AstraZeneca Nordic Balt, Sweden.
    Akesson, Johanna
    AstraZeneca Nordic Balt, Sweden.
    Brorsson, Hilja
    Statisticon AB, Sweden.
    Alfredsson, Joakim
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Albertsson, Per A.
    Sahlgrens University Hospital, Sweden.
    Karlsson, Jan-Erik
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten.
    Varenhorst, Christoph
    Uppsala University, Sweden.
    Effects of interactive patient smartphone support app on drug adherence and lifestyle changes in myocardial infarction patients: A randomized study2016Ingår i: American Heart Journal, ISSN 0002-8703, E-ISSN 1097-6744, Vol. 178, s. 85-94Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background Patients with myocardial infarction (MI) seldom reach recommended targets for secondary prevention. This study evaluated a smartphone application ("app") aimed at improving treatment adherence and cardiovascular lifestyle in MI patients. Design Multicenter, randomized trial. Methods A total of 174 ticagrelor-treated MI patients were randomized to either an interactive patient support tool (active group) or a simplified tool (control group) in addition to usual post-MI care. Primary end point was a composite nonadherence score measuring patient-registered ticagrelor adherence, defined as a combination of adherence failure events (2 missed doses registered in 7-day cycles) and treatment gaps (4 consecutive missed doses). Secondary end points included change in cardiovascular risk factors, quality of life (European Quality of Life-5 Dimensions), and patient device satisfaction (System Usability Scale). Results Patient mean age was 58 years, 81% were men, and 21% were current smokers. At 6 months, greater patient registered drug adherence was achieved in the active vs the control group (nonadherence score: 16.6 vs 22.8 [P = .025]). Numerically, the active group was associated with higher degree of smoking cessation, increased physical activity, and change in quality of life; however, this did not reach statistical significance. Patient satisfaction was significantly higher in the active vs the control group (system usability score: 87.3 vs 78.1 [P = .001]). Conclusions In MI patients, use of an interactive patient support tool improved patient self-reported drug adherence and may be associated with a trend toward improved cardiovascular lifestyle changes and quality of life. Use of a disease-specific interactive patient support tool may be an appreciated, simple, and promising complement to standard secondary prevention.

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  • 22.
    Barmano, Neshro
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Medicinska fakulteten. Department of Internal Medicine, County hospital Ryhov, Jönköping, Sweden;Jönköping Academy, Jönköping University,Jönköping, Sweden..
    Walfridsson, Ulla
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US.
    Walfridsson, Håkan
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Region Östergötland, Hjärt- och Medicincentrum, Kardiologiska kliniken US. 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 hospital Ryhov, Jönköping, Sweden;Jönköping Academy, Jönköping University,Jönköping, Sweden..
    Structured care of patients with atrial fibrillation improves guideline adherence2016Ingår i: Journal of Atrial Fibrillation, ISSN 1941-6911, Vol. 9, nr 4Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    There are many reports of lack of guideline adherence in the treatment of patients with atrial fibrillation (AF), and AF affects health-related quality of life (HRQoL) negatively. The aim of this study was to investigate whether structured care compared to standard care of a general AF population could improve guideline adherence and HRQoL, and reduce symptoms,anxiety and depression.

    Methods

    In total, 176 patients were recruited to the intervention and 146 patients to the control group.The intervention consisted of a structured follow-up program, while patients serving as controls received standard care. The primary outcome was guideline adherence evaluated through: appropriate use of oral anticoagulants (OAC) and antiarrhythmics, whether echocardiogram and thyroid lab tests were performed, and patient-reported outcome measures (PROMs), assessed with the questionnaires SF-36, EQ-5D, HADS and ASTA at baseline and after one year.

    Results

    Guideline adherence was significantly better in the intervention group, 91% vs. 63% (p < 0.01), mainly due to appropriate OAC treatment 94% vs. 74% (p < 0.01). Symptoms assessed with ASTA were less frequent and the negative impact of AF was reduced in the intervention group after one year/ at follow-up. Five scales in SF-36, and the visual analogue scale for current health status in EQ-5D (EQ-VAS), improved significantly in both groups.

    Conclusion

    Structured care of patients with AF significantly improved guideline adherence and patients reported fewer symptoms and a reduced negative impact on disease-specific HRQoL compared to standard care at one year follow-up.

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  • 23.
    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.
    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, 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.

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  • 24.
    Karlsson, Jan-Erik
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Hälsouniversitetet. Department of Internal Medicine, County Council of Jönköping, Ryhov County Hospital, Jönköping, Sweden.
    El-Saadi, Walid
    Department of Internal Medicine, County Council of Jönköping, Ryhov County Hospital, Jönköping, Sweden.
    Ali, Mustafa
    Department of Internal Medicine, County Council of Jönköping, Ryhov County Hospital, Jönköping, Sweden; Department of Radiology, County Council of Jönköping, Jönköping, Sweden.
    Puskar, Werner
    Department of Radiology, County Council of Jönköping, Jönköping, Sweden.
    Skogvard, Patrik
    Department of Internal Medicine, County Council of Jönköping, Ryhov County Hospital, Jönköping, Sweden.
    Engvall, Jan E
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för kardiovaskulär medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Fysiologiska kliniken US.
    Andersson, Rolf
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Hälsouniversitetet.
    Maret, Eva
    Department of Radiology, County Council of Jönköping, Jönköping, Sweden; Department of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden.
    Jynge, Per
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för läkemedelsforskning. Linköpings universitet, Hälsouniversitetet. PledPharma AB, Stockholm, Sweden.
    Mangafodipir as a cardioprotective adjunct to reperfusion therapy: a feasibility study in patients with ST-segment elevation myocardial infarction2015Ingår i: European Heart Journal - Cardiovascular Pharmacotherapy, ISSN 2055-6837, Vol. 1, nr 1, s. 39-45Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aims The aim of the present study was to examine the feasibility of applying the catalytic antioxidant mangafodipir [MnDPDP, manganese (Mn) dipyridoxyl diphosphate] as a cardioprotective adjunct to primary percutaneous coronary intervention (pPCI) in patients with ST-segment elevation (STE) myocardial infarction (STEMI). Both MnDPDP and a metabolite (Mn dipyridoxyl ethyldiamine) possess properties as mitochondrial superoxide dismutase mimetics and iron chelators, and combat oxidative stress in various tissues and conditions.

    Methods and results

    The study tested MnDPDP (n ¼ 10) vs. saline placebo (n ¼ 10), given as a brief intravenous (i.v.) infusion prior to balloon inflation during pPCI in patients with STEMI. Mangafodipir waswell tolerated and did not affect heart rate or blood pressure. Despite longer ischaemic time (205 vs. 144 min, P ¼ 0.019) in theMnDPDPgroup, plasma biomarker releaseswere identical for the two groups. With placebo vs.MnDPDP, mean STE resolutions were 69.8 vs. 81.9% (P ¼ 0.224) at 6 h and 73.1 vs. 84.3% (P ¼ 0.077) at 48 h. Cardiac magnetic resonance revealed mean infarct sizes of 32.5 vs. 26.2% (P ¼ 0.406) andmeanleft ventricular (LV) ejection fractions of 41.8 vs. 47.7% (P ¼ 0.617) with placebovs.MnDPDP.More LVthrombi were detected in placebo hearts (5 of 8) than MnDPDP-treated hearts (1 of 10; P ¼ 0.011).

    Conclusions Mangafodipir is a safe drug for use as an adjunct to reperfusion therapy. A tendency to benefit of MnDPDP needs confirmation in a larger population. The study revealed important information for the design of a Phase II trial.

     

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