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  • 1.
    Agvall, Björn
    et al.
    Linköping University, Department of Medical and Health Sciences, General Practice. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland, Primary Health Care Centres.
    Alehagen, Urban
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    The benefits of using a heart failure management programme in Swedish primary healthcare2013In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 15, no 2, p. 228-236Article in journal (Refereed)
    Abstract [en]

    Heart failure (HF) is a common condition with which high mortality, morbidity, and poor quality of life are associated. It has previously been shown that use of HF management programmes (HFMPs) in HF clinics can be beneficial. The purpose of this study was to evaluate if the use of HFMPs also has beneficial effects on HF patients in primary healthcare (PHC). less thanbrgreater than less thanbrgreater thanThis is a randomized, prospective, open-label study including 160 patients from five PHC centres with systolic HF and a mean age of 75 years (standard deviation 7.8). In the intervention group, an intensive follow-up was performed by HF nurses and physicians providing information and education about HF and the optimization of HF treatment according to recognized guidelines. There was a significant improvement of composite endpoints in the intervention group. Significantly more patients with reduced N-terminal pro brain natriuretic peptide (P 0.012), improved cardiac function (P 0.03), fewer healthcare contacts (P 0.04), and fewer emergency room visits and admittances (P 0.0002 and P 0.03, respectively) could be seen in the intervention group when compared with the control group. less thanbrgreater than less thanbrgreater thanThe use of a HFMP in a PHC setting was found to have beneficial effects in terms of reducing the number of healthcare contacts and hospital admissions, and improving cardiac function in patients with systolic HF, even if the result should be interpreted with caution. It can therefore be recommended that HFMPs should be used in PHC.

  • 2.
    Agvall, Björn
    et al.
    Linköping University, Department of Department of Health and Society, General Practice. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland.
    Borgquist, Lars
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, General Practice. Östergötlands Läns Landsting, Local Health Care Services in West Östergötland, Research & Development Unit in Local Health Care.
    Foldevi, Mats
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, General Practice. Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland.
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Cost of heart failure in Swedish primary healthcare2005In: Scandinavian Journal of Primary Health Care, ISSN 0281-3432, E-ISSN 1502-7724, Vol. 23, p. 227-232Article in journal (Refereed)
    Abstract [en]

    Objectives. To calculate the cost for patients with heart failure (HF) in a primary healthcare setting. Design. Retrospective study of all available patient data during a period of one year. Setting. Two healthcare centers in Linköping in the southeastern region of Sweden, covering a population of 19 400 inhabitants. Subjects. A total of 115 patients with a diagnosis of HF. Main outcome measures. The healthcare costs for patients with HF and the healthcare utilization concerning hospital days and visits to doctors and nurses in hospital care and primary healthcare. Results. The mean annual cost for a patient with HF was SEK 37 100. There were no significant differences in cost between gender, age, New York Heart Association functional class, and cardiac function. The distribution of cost was 47% for hospital care, 22% for primary healthcare, 18% for medication, 5% for nursing home, and 6% for examinations. Conclusion. Hospital care accounts for the largest cost but the cost in primary healthcare is larger than previously shown. The total annual cost for patients with HF in Sweden is in the range of SEK 5.0–6.7 billion according to this calculation, which is higher than previously known.Read More: http://informahealthcare.com/doi/abs/10.1080/02813430500197647

  • 3.
    Agvall, Björn
    et al.
    Linköping University, Department of Department of Health and Society, General Practice. Linköping University, Faculty of Health Sciences.
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Patients in primary health care diagnosed and treated as heart failure, with special reference to gender differences2001In: Scandinavian Journal of Primary Health Care, ISSN 0281-3432, E-ISSN 1502-7724, Vol. 19, no 1, p. 14-19Article in journal (Refereed)
    Abstract [en]

    Objective - The aim of the present study was to describe patients considered to have had heart failure (HF), or were being treated for HF, in a defined area in primary health care, e.g. diagnostic procedures, aetiologic diseases and management, and to evaluate whether there is a difference between the genders. Design - Descriptive retrospective investigation. Setting - ┼tvidaberg community situated in southeast Sweden, 12 400 inhabitants. Patients - 256 patients treated for symptomatic HF. Main outcome measures - Prevalence, aetiology, diagnostic procedures and management of HF and differences between the genders. Results - The diagnosis of HF was based on an objective evaluation of cardiac function in only 31% of the patients. Ischaemic heart disease (IHD) was the predominant associated disease, followed by hypertension. Therapy included diuretics (84%), angiotensin converting enzyme (ACE) inhibitors (56%) and digoxin (40%). Only 52% had optimal doses of ACE inhibitors. Women had a significantly higher mean age and their diagnoses were based on an objective diagnostic test (echocardiography) in only 20%. Women were prescribed ACE inhibitors to a lesser extent (43%) than men (64%) and with a lower optimal dose (44% versus 56% in men). Conclusion - There is still room for improvement in the management of HF in primary health care, especially in women, where the diagnosis is not generally based on an objective evaluation of cardiac function and where the treatment to a lesser extent than in men includes ACE inhibitors.

  • 4.
    Agvall, Björn
    et al.
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland, Primary Health Care in Central County.
    Paulsson, Thomas
    Global Health Economics and Outcomes Research, Bristol-Myers Squibb, Belgium.
    Foldevi, Mats
    Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland, Primary Health Care in Central County.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Cardiology in Linköping.
    Alehagen, Urban
    Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Cardiology in Linköping. Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine.
    Resource use and cost implications of implementing a heart failure program for patients with systolic heart failure in Swedish primary health care2014In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 176, p. 731-738Article in journal (Refereed)
    Abstract [en]

    Aim: Heart failure (HF) is a common but serious condition which involves a significant economic burden on the health care economy. The purpose of this study was to evaluate cost and quality of life (QoL) implications of implementing a HF management program (HFMP) in primary health care (PHC).

    Methods and results: This was a prospective randomized open-label study including 160 patientswith a diagnosis of HF from five PHC centers in south-eastern Sweden. Patients randomized to the intervention group received information about HF from HF nurses and from a validated computer-based awareness program. HF nurses and physicians followed the patients intensely in order to optimize HF treatment according to current guidelines. The patients in the control group were followed by their regular general practitioner (GP) and received standard treatment according to local management routines. No significant changes were observed in NYHA class and quality-adjusted life years (QALY), implying that functional class and QoL were preserved. However, costs for hospital care (HC) and PHC were reduced by EUR 2167, or 33%. The total cost was EUR 4471 in the intervention group and EUR 6638 in the control group.

    Conclusions: Introducing HFMP in Swedish PHC in patients with HF entails a significant reduction in resource utilization and costs, and maintains QoL. Based on these results, a broader implementation of HFMP in PHC may be recommended. However, results should be confirmed with extended follow-up to verify  long-term effects.

  • 5.
    Ahlström, Christer
    et al.
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Ask, Per
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Rask, Peter
    University Hospital, Örebro, Sweden .
    Karlsson, Jan-Erik
    County Hospital Ryhov, Jönköping, Sweden.
    Nylander, Eva
    Linköping University, Department of Medicine and Care, Clinical Physiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Clinical Physiology.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Hult, Peter
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Assessment of Suspected Aortic Stenosis by Auto Mutual Information Analysis of Murmurs2007In: Engineering in Medicine and Biology Society, 2007. EMBS 2007, 2007, p. 1945-1948Conference paper (Refereed)
    Abstract [en]

    Mild sclerotic thickening of the aortic valve affects 25% of the population, and the condition causes aortic valve stenosis (AS) in 2% of adults above 65 years. Echocardiography is today the clinical standard for assessing AS. However, a cost effective and uncomplicated technique that can be used for decision support in the primary health care would be of great value. In this study, recorded phonocardiographic signals were analyzed using the first local minimum of the auto mutual information (AMI) function. The AMI method measures the complexity in the sound signal, which is related to the amount of turbulence in the blood flow and thus to the severity of the stenosis. Two previously developed phonocardiographic methods for assessing AS severity were used for comparison, the murmur energy ratio and the sound spectral averaging technique. Twenty-nine patients with suspected AS were examined with Doppler echocardiography. The aortic jet velocity was used as a reference of AS severity, and it was found to correlate with the AMI method, the murmur energy ratio and the sound spectral averaging technique with the correlation coefficient R = 0.82, R = 0.73 and R = 0.76, respectively.

  • 6.
    Ahlström, Christer
    et al.
    Linköping University, The Institute of Technology. Linköping University, Department of Biomedical Engineering, Physiological Measurements.
    Hult, Peter
    Linköping University, The Institute of Technology. Linköping University, Department of Biomedical Engineering, Physiological Measurements.
    Rask, P
    Karlsson, J-E
    Nylander, Eva
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Clinical Physiology. Östergötlands Läns Landsting, Heart Centre, Department of Clinical Physiology.
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Ask, Per
    Linköping University, The Institute of Technology. Linköping University, Department of Biomedical Engineering, Physiological Measurements.
    Using the intelligent stethoscope for extraction of features for systolic heart murmur classification2006In: World Congress on Medical Physics and Biomedical Engineering WC2006,2006, 2006Conference paper (Other academic)
  • 7.
    Ahlström, Christer
    et al.
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Hult, Peter
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Rask, Peter
    Örebro university.
    Karlsson, Jan-Erik
    Nylander, Eva
    Linköping University, Department of Medicine and Health Sciences, Clinical Physiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Clinical Physiology.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences.
    Ask, Per
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Feature Extraction for Systolic Heart Murmur Classification2006In: Annals of Biomedical Engineering, ISSN 0090-6964, E-ISSN 1573-9686, Vol. 34, no 11, p. 1666-1677Article in journal (Refereed)
    Abstract [en]

    Heart murmurs are often the first signs of pathological changes of the heart valves, and they are usually found during auscultation in the primary health care. Distinguishing a pathological murmur from a physiological murmur is however difficult, why an “intelligent stethoscope” with decision support abilities would be of great value. Phonocardiographic signals were acquired from 36 patients with aortic valve stenosis, mitral insufficiency or physiological murmurs, and the data were analyzed with the aim to find a suitable feature subset for automatic classification of heart murmurs. Techniques such as Shannon energy, wavelets, fractal dimensions and recurrence quantification analysis were used to extract 207 features. 157 of these features have not previously been used in heart murmur classification. A multi-domain subset consisting of 14, both old and new, features was derived using Pudil’s sequential floating forward selection (SFFS) method. This subset was compared with several single domain feature sets. Using neural network classification, the selected multi-domain subset gave the best results; 86% correct classifications compared to 68% for the first runner-up. In conclusion, the derived feature set was superior to the comparative sets, and seems rather robust to noisy data.

  • 8.
    Ahmad, Tariq
    et al.
    Yale Univ, CT USA; Yale Univ, CT USA.
    Lund, Lars H.
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Rao, Pooja
    Qure Ai, India.
    Ghosh, Rohit
    Qure Ai, India.
    Warier, Prashant
    Qure Ai, India.
    Vaccaro, Benjamin
    Yale Univ, CT USA; Yale Univ, CT USA.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    OConnor, Christopher M.
    Duke Univ, NC USA.
    Felker, G. Michael
    Duke Univ, NC USA.
    Desai, Nihar R.
    Yale Univ, CT USA; Yale Univ, CT USA.
    Machine Learning Methods Improve Prognostication, Identify Clinically Distinct Phenotypes, and Detect Heterogeneity in Response to Therapy in a Large Cohort of Heart Failure Patients2018In: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, E-ISSN 2047-9980, Vol. 7, no 8, article id e008081Article in journal (Refereed)
    Abstract [en]

    Background-Whereas heart failure (HF) is a complex clinical syndrome, conventional approaches to its management have treated it as a singular disease, leading to inadequate patient care and inefficient clinical trials. We hypothesized that applying advanced analytics to a large cohort of HF patients would improve prognostication of outcomes, identify distinct patient phenotypes, and detect heterogeneity in treatment response. Methods and Results-The Swedish Heart Failure Registry is a nationwide registry collecting detailed demographic, clinical, laboratory, and medication data and linked to databases with outcome information. We applied random forest modeling to identify predictors of 1-year survival. Cluster analysis was performed and validated using serial bootstrapping. Association between clusters and survival was assessed with Cox proportional hazards modeling and interaction testing was performed to assess for heterogeneity in response to HF pharmacotherapy across propensity-matched clusters. Our study included 44 886 HF patients enrolled in the Swedish Heart Failure Registry between 2000 and 2012. Random forest modeling demonstrated excellent calibration and discrimination for survival (C-statistic=0.83) whereas left ventricular ejection fraction did not (C-statistic=0.52): there were no meaningful differences per strata of left ventricular ejection fraction (1-year survival: 80%, 81%, 83%, and 84%). Cluster analysis using the 8 highest predictive variables identified 4 clinically relevant subgroups of HF with marked differences in 1-year survival. There were significant interactions between propensity-matched clusters (across age, sex, and left ventricular ejection fraction and the following medications: diuretics, angiotensin-converting enzyme inhibitors, )i-blockers, and nitrates, Pamp;lt;0.001, all). Conclusions-Machine learning algorithms accurately predicted outcomes in a large data set of HF patients. Cluster analysis identified 4 distinct phenotypes that differed significantly in outcomes and in response to therapeutics. Use of these novel analytic approaches has the potential to enhance effectiveness of current therapies and transform future HF clinical trials.

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  • 9.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Benson, Lina
    Karolinska Institute, Sweden.
    Edner, Magnus
    Karolinska University Hospital, Sweden; Karolinska Institute, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Lund, Lars H.
    Karolinska University Hospital, Sweden; Karolinska Institute, Sweden.
    Association Between Use of Statins and Mortality in Patients With Heart Failure and Ejection Fraction of greater than= 50%2015In: Circulation Heart Failure, ISSN 1941-3289, E-ISSN 1941-3297, Vol. 8, no 5, p. 862-870Article in journal (Refereed)
    Abstract [en]

    Background The pathophysiology of heart failure with preserved ejection fraction is poorly understood, but may involve a systemic proinflammatory state. Therefore, statins might improve outcomes in patients with heart failure with preserved ejection fraction defined as 50%. Methods and Results Of 46 959 unique patients in the prospective Swedish Heart Failure Registry, 9140 patients had heart failure and ejection fraction 50% (age 7711 years, 54.0% women), and of these, 3427 (37.5%) were treated with statins. Propensity scores for statin treatment were derived from 40 baseline variables. The association between statin use and primary (all-cause mortality) and secondary (separately, cardiovascular mortality, and combined all-cause mortality or cardiovascular hospitalization) end points was assessed with Cox regressions in a population matched 1:1 based on age and propensity score. In the matched population, 1-year survival was 85.1% for statin-treated versus 80.9% for untreated patients (hazard ratio, 0.80; 95% confidence interval, 0.72-0.89; Pless than0.001). Statins were also associated with reduced cardiovascular death (hazard ratio, 0.86; 95% confidence interval, 0.75-0.98; P=0.026) and composite all-cause mortality or cardiovascular hospitalization (hazard ratio, 0.89; 95% confidence interval, 0.82-0.96; P=0.003). Conclusions In heart failure with ejection fraction 50%, the use of statins was associated with improved outcomes. The mechanisms should be evaluated and the effects tested in a randomized trial.

  • 10.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Benson, Lina
    Karolinska Institute, Sweden.
    Edner, Magnus
    Karolinska Institute, Sweden; Karolinska University Hospital, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Lund, Lars H.
    Karolinska Institute, Sweden; Karolinska University Hospital, Sweden.
    Association Between Use of Statins and Outcomes in Heart Failure With Reduced Ejection Fraction Prospective Propensity Score Matched Cohort Study of 21 864 Patients in the Swedish Heart Failure Registry2015In: Circulation Heart Failure, ISSN 1941-3289, E-ISSN 1941-3297, Vol. 8, no 2, p. 252-260Article in journal (Refereed)
    Abstract [en]

    Background-In heart failure (HF) with reduced ejection fraction, randomized trials of statins did not demonstrate improved outcomes. However, randomized trials may not always be generalizable. The aim was to determine whether statins are associated with improved outcomes in an unselected nationwide population of patients with HF with reduced ejection fraction overall and in relation to ischemic heart disease (IHD). Methods and Results-In the Swedish Heart Failure Registry, 21 864 patients with HF with reduced ejection fraction (age +/- SD, 72+/-12 years; 29% women), of whom 10 345 (47%) were treated with statins, were studied. Propensity scores for statin use were derived from 42 baseline variables. The associations between statin use and outcomes were assessed with Cox regressions in a population matched 1: 1 based on propensity score and age and in the overall population with adjustment for propensity score and age. The primary outcome was all-cause mortality; secondary outcomes were cardiovascular mortality; HF hospitalization; and combined all-cause mortality or cardiovascular hospitalization. Survival at 1 year in the matched population was 83% for statin-treated versus 79% for untreated patients (hazard ratio, 0.81; 95% confidence interval, 0.76-0.86; Pless than0.001). In the unmatched population, 1-year survival was 85% for statin-treated versus 79% for untreated patients, hazard ratio after adjustment for propensity score and age was 0.84 (95% confidence interval, 0.80-0.89; Pless than0.001). No examined baseline variables interacted with statin use except for IHD (P=0.001), with a hazard ratio of 0.76 (95% confidence interval, 0.70-0.82, Pless than0.001) with IHD and 0.95 (95% confidence interval, 0.85-1.07; P=0.430 without IHD. Statin use was also associated with reduced risk for all 3 secondary outcomes. Conclusions-In an unselected nationwide population of patients with HF with reduced ejection fraction, statins were associated with improved outcomes, specifically in the presence of IHD. This contrasts with previous randomized controlled trials. Additional randomized controlled trials with more generalized inclusion or focused on IHD may be warranted.

  • 11.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Can NT-proBNP predict risk of cardiovascular mortality within 10 years? Results from an epidemiological study of elderly patients with symptoms of heart failure2009In: International journal of cardiology, ISSN 0167-5273, Vol. 133, no 2, p. 233-240Article in journal (Refereed)
    Abstract [en]

    Background: Heart failure has a serious prognosis. However, among elderly patients the panorama of concomitant diseases makes it difficult to implement the results from epidemiological studies. The aim of this study was to evaluate the influence of different clinical variables on cardiovascular mortality during a long-term follow-up.

    Methods and results: In all, 474 elderly patients (age 65-82 years) in primary health care were evaluated and followed during a 10 year period. All patients had symptoms associated with heart failure and were examined by a cardiologist. Blood samples including NT-proBNP were analyzed, and ECG and Doppler echocardiography were assessed. Both the systolic and diastolic function was evaluated. Functional capacity was evaluated according to the NYHA classification.

    During the 10 years of follow-up those with the highest quartile of plasma concentration of NT-proBNP had almost four times increased risk of cardiovascular mortality. Impaired systolic function, diabetes and reduced functional capacity were all markers of increased risk of cardiovascular mortality. All variables were also evaluated after 5 years, with higher risk ratios for a majority of variables.

    Conclusion: In this study 474 patients with symptoms of heart failure were followed during 10 years. High plasma concentration of NT-proBNP could predict almost four times increased risk of cardiovascular mortality up to 10 years. Also, impaired cardiac function according to echocardiography, and reduced functional capacity as well as diabetes all had influence on risk of cardiovascular mortality up to 10 years.

     

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  • 12.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Carstensen, John
    Linköping University, Department of Medical and Health Sciences, Health and Society. Linköping University, Faculty of Arts and Sciences.
    Rehfeld, J. F.
    University of Copenhagen, Denmark .
    Gotze, J. P.
    University of Copenhagen, Denmark .
    Combined measurement of copeptin, high sensitivity Troponin T, and NT-proBNP improves the identification of elderly patients at risk of cardiovascular death in REGULATORY PEPTIDES, vol 177, issue , pp S14-S142012In: REGULATORY PEPTIDES, Elsevier , 2012, Vol. 177, p. S14-S14Conference paper (Refereed)
    Abstract [en]

    n/a

  • 13.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Cartensen, John
    Linköping University, Department of Medical and Health Sciences, Health and Society. Linköping University, Faculty of Arts and Sciences.
    Refeld, Jens
    Rigshospitalet, University of Copenhagen, Denmark.
    Goetze, Jens
    Rigshospitalet, University of Copenhagen, Denmark.
    Combined measurement of copeptin, high-sensitivity troponin T, and N-terminal proBNP improves the identification of patients at risk of cardiovascular death2012In: Cardiovascular Endocrinology, ISSN 2162-688X, Vol. 1, no 4, p. 68-73Article in journal (Refereed)
    Abstract [en]

    Objectives: A multimarker strategy for the handling of patients with heart failure has been suggested in the literature. Therefore, the potential prognostic relevance of combined copeptin, high-sensitivity troponin T (HS-TnT), and N-terminal proBNP (NT-proBNP) measurement in plasma from elderly patients with symptoms of heart failure was evaluated

    Methods: This study included 470 elderly patients (mean age 73 years) from a rural municipality with symptoms of heart failure. Clinical examination, echocardiography, and biomarker measurements were performed. All patients were followed for 13 years and all mortality was registered. Cardiovascular mortality was evaluated using Kaplan-Meier plots and multivariate Cox proportional hazard regression analyses.

    Results: Copeptin, HS-TnT, and NT-proBNP measurements provided independent prognostic information in a multivariate setting over 5 years (hazard ratio, HR: 3.66; 95% confidence interval, CI 1.27-10.53, HR: 2.52; 95% CI 1.20-5.28, HR: 2.73; 95% CI 1.19-6.26, respectively). Also, the group with all three biomarkers below cut-off values had a low risk for cardiovascular death (1.8% of the patients in this group died in the 5-year follow-up period). In the 13-year follow-up, combined copeptin and HS-TnT measurement did not provide independent prognostic information.

    Conclusion: Combined copeptin, HS-TnT, and NT-proBNP plasma measurements provide prognostic information on cardiovascular mortality that is superior to single biomarker use.

  • 14.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Lindahl, Tomas
    Linköping University, Department of Clinical and Experimental Medicine, Clinical Chemistry. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Laboratory Medicine, Department of Clinical Chemistry.
    Cystatin C and NT-proBNP, a powerful combination of biomarkers for predicting cardiovascular mortality in elderly patients with heart failure: results from a 10-year study in primary care2009In: EUROPEAN JOURNAL OF HEART FAILURE, ISSN 1388-9842, Vol. 11, no 4, p. 354-360Article in journal (Refereed)
    Abstract [en]

    Heart failure (HF) is common among the elderly patients. It is essential to identify those at high risk in order to optimize the use of resources. We aimed to evaluate whether a combination of two biomarkers might give better prognostic information about the risk of cardiovascular (CV) mortality in patients with symptoms associated with HF, compared with only one biomarker. Four hundred and sixty-four primary health-care patients (mean age 73 years, range 65-87) with symptoms of HF were examined. All patients were evaluated using Doppler echocardiography and blood samples, including measurement of cystatin C and NT-proBNP. The patients were followed over a 10-year period. Patients with serum cystatin C levels within the highest quartile had almost three times the risk (HR: 2.92; 95% CI: 1.23-4.90) of CV mortality compared with those patients who had levels within the first, second, or third quartiles. If, at the same time, the patient had a plasma concentration of NT-proBNP within the highest quartile, the risk increased to andgt; 13 times (HR: 13.61; 95% CI: 2.56-72.24) during 10 years of follow-up or andgt; 17 times (HR: 17.04; 95% CI: 1.80-163.39) after 5 years of follow-up. Combined analysis of cystatin C and NT-proBNP could provide important prognostic information among elderly patients in the community with symptoms of HF.

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  • 15.
    Alehagen, Urban
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Lindahl, Tomas
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Division of clinical chemistry. Östergötlands Läns Landsting, Centre for Laboratory Medicine, Department of Clinical Chemistry.
    Elevated D-dimer level is an independent risk factor for cardiovascular death in out-patients with symptoms compatible with heart failure2004In: Thrombosis and Haemostasis, ISSN 0340-6245, E-ISSN 2567-689X, Vol. 92, no 6, p. 1250-1258Article in journal (Refereed)
    Abstract [en]

    D-dimer, a marker of fibrin turnover, exhibits many interesting properties as a biological marker of thrombosis. Some of the properties of D-dimer might also be used to provide additional information about patients with heart failure. In this study, we evaluate the prognostic information acquired from D-dimer concerning increased risk of cardiovascular mortality in an elderly population with symptoms associated with heart failure. A cardiologist examined 458 elderly patients, out of 548 invited, attending primary care for symptoms of dyspnoea, fatigue and/or peripheral oedema and assessed NYHA functional class and cardiac function. Abnormal systolic function was defined as EF <40% on Doppler echocardiography. Abnormal diastolic function was defined as reduced E/A ratio and/or an abnormal pattern of pulmonary venous flow. Blood samples were drawn, and BNP and D-dimer were analysed. D-dimer was analysed using an automated micro-latex assay. A statistical analysis was performed to identify the prognostic value of increased plasma concentration of D-dimer. Results showed that during a median follow-up period of 5.5 years, 68 (14%) patients died of cardiovascular disease. No gender difference was noted. A plasma concentration of D-dimer >0.25mg/L increased the risk almost 4-fold. In conclusion, D-dimer is an independent risk factor for cardiovascular mortality that may be used to risk-stratify patients with heart failure. © 2004 Schattauer GmbH, Stuttgart.

  • 16.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Lindahl, Tomas L
    Linköping University, Department of Clinical and Experimental Medicine, Clinical Chemistry. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Laboratory Medicine, Department of Clinical Chemistry.
    Low plasma concentrations of coagulation factors II, VII and XI indicate increased risk among elderly with symptoms of heart failure.2010In: Blood coagulation & fibrinolysis : an international journal in haemostasis and thrombosis, ISSN 1473-5733, Vol. 21, no 1, p. 62-9Article in journal (Refereed)
    Abstract [en]

    Heart failure is a serious condition, and it is, therefore, important to identify patients at high risk as early as possible in order to initiate appropriate treatment. The condition results in complicated disease mechanisms including disturbances in blood coagulation. The aim of the present study was to evaluate whether low plasma concentrations of coagulation factors (F) II, VII and XI influence cardiovascular mortality in an elderly population with possible heart failure. A cardiologist evaluated 450 elderly patients who attended primary healthcare because of symptoms associated with heart failure. He recorded new patient history, conducted a clinical examination, took blood samples, determined concentrations of B-type natriuretic peptide and FII, FVII, FXI and performed Doppler echocardiography. The patients were followed over almost a 10-year period during which all mortality was registered. In patients with suspected heart failure, those with low plasma concentrations of FII, FVII, FXI or all had a significantly higher mortality rate during the follow-up period of 10 years as compared with those with higher plasma concentrations, in contrast with findings in previous reports on patients with acute coronary syndromes. In the group with a plasma concentration of the first versus the ninth decile of FII, FVII, FXI or all, the risk of cardiovascular mortality increased two to three times.

  • 17.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Rehfeld, Jens F
    University of Copenhagen, Denmark.
    Goetze, Jens P
    University of Copenhagen, Denmark.
    Association of Copeptin and N-Terminal proBNP Concentrations With Risk of Cardiovascular Death in Older Patients With Symptoms of Heart Failure2011In: JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, ISSN 0098-7484, Vol. 305, no 20, p. 2088-2095Article in journal (Refereed)
    Abstract [en]

    Context Measurement of plasma concentrations of the biomarker copeptin may help identify patients with heart failure at high and low risk of mortality, although the value of copeptin measurement in elderly patients is not fully known. Objective To evaluate the association between plasma concentrations of copeptin, a surrogate marker of vasopressin, combined with concentrations of the N-terminal fragment of the precursor to B-type natriuretic peptide (NT-proBNP), and mortality in a cohort of elderly patients with symptoms of heart failure. Design, Setting, and Participants Primary health care population in Sweden enrolling 470 elderly patients with heart failure symptoms between January and December 1996. Clinical examination, echocardiography, and measurement of peptide concentrations were performed, with follow-up through December 2009. Main Outcome Measures All-cause mortality and cardiovascular mortality. Results After a median follow-up of 13 years, there were 226 deaths from all causes, including 146 deaths from cardiovascular causes. Increased concentration of copeptin was associated with increased risk of all-cause mortality (fourth quartile vs first quartile: 69.5% vs 38.5%, respectively; hazard ratio [HR], 2.04 [95% confidence interval {CI}, 1.38-3.02]) and cardiovascular mortality (fourth quartile vs first quartile: 46.6% vs 26.5%; HR, 1.94 [95% CI, 1.20-3.13]). The combination of elevated NT-proBNP concentrations and elevated copeptin concentrations also was associated with increased risk of all-cause mortality (copeptin fourth quartile: HR, 1.63 [95% CI, 1.08-2.47]; P=.01; NT-proBNP fourth quartile: HR, 3.17 [95% CI, 2.02-4.98]; Pandlt;.001). Using the 2 biomarkers simultaneously in the evaluation of cardiovascular mortality, there was a significant association for copeptin in the presence of NT-proBNP (log likelihood trend test, P=.048) and a significant association for NT-proBNP (fourth quartile: HR, 4.68 [95% CI 2.63-8.34]; Pandlt;.001). Conclusion Among elderly patients with symptoms of heart failure, elevated concentrations of copeptin and the combination of elevated concentrations of copeptin and NT-proBNP were associated with increased risk of all-cause mortality.

  • 18.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Rehfeld, Jens F.
    University of Copenhagen, Denmark .
    Goetze, Jens P.
    University of Copenhagen, Denmark .
    Pro-A-Type Natriuretic Peptide, Proadrenomedullin, and N-Terminal Pro-B-Type Natriuretic Peptide Used in a Multimarker Strategy in Primary Health Care in Risk Assessment of Patients With Symptoms of Heart Failure2013In: Journal of Cardiac Failure, ISSN 1071-9164, E-ISSN 1532-8414, Vol. 19, no 1, p. 31-39Article in journal (Refereed)
    Abstract [en]

    Objective: Use of new biomarkers in the handling of heart failure patients has been advocated in the literature, but most often in hospital-based populations. Therefore, we wanted to evaluate whether plasma measurement of N-terminal pro B-type natriuretic peptide (NT-proBNP), midregional pro A-type natriuretic peptide (MR-proANP), and midregional proadrenomedullin (MR-proADM), individually or combined, gives prognostic information regarding cardiovascular and all-cause mortality that could motivate use in elderly patients presenting with symptoms suggestive of heart failure in primary health care. less thanbrgreater than less thanbrgreater thanMethods and Results: The study included 470 elderly patients (mean age 73 years) with symptoms of heart failure in primary health care. All participants underwent clinical examination, 2-dimenstional echocardiography, and plasma measurement of the 3 propeptides and were followed for 13 years. All mortality was registered during the follow-up period. The 4th quartiles of the biomarkers were applied as cutoff values. NT-proBNP exhibited the strongest prognostic information with andgt;4-fold increased risk for cardiovascular mortality within 5 years. For all-cause mortality MR-proADM exhibited almost 2-fold and NT-proBNP 3-fold increased risk within 5 years. In the 5-13-year perspective, NT-proBNP and MR-proANP showed significant and independent cardiovascular prognostic information. NT-proBNP and MR-proADM showed significant prognostic information regarding all-cause mortality during the same time. In those with ejection fraction (EF) andlt;40%, MR-proADM exhibited almost 5-fold increased risk of cardiovascular mortality with 5 years, whereas in those with EF andgt;50% NT-proBNP exhibited andgt;3-fold increased risk if analyzed as the only biomarker in the model. If instead the biomarkers were all below the cutoff value, the patients had a highly reduced mortality risk, which also could influence the handling of patients. less thanbrgreater than less thanbrgreater thanConclusions: The 3 biomarkers could be integrated in a multimarker strategy for use in primary health care. (J Cardiac Fail 2013;19:31-39)

  • 19.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Rehfeld, Jens F
    University of Copenhagen.
    Goetze, Jens P
    University of Copenhagen.
    Prognostic Assessment of Elderly Patients with Symptoms of Heart Failure by Combining High-Sensitivity Troponin T and N-Terminal Pro-B-Type Natriuretic Peptide Measurements2010In: CLINICAL CHEMISTRY, ISSN 0009-9147, Vol. 56, no 11, p. 1718-1724Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: N-terminal pro-B-type natriuretic peptide (NT-proBNP) is a useful biomarker in heart failure assessment, whereas measurement of cardiac troponin is central in the diagnosis of patients with acute coronary syndromes. This report examined the prognostic use of combining high-sensitivity cardiac troponin T (hs-cTnT) and NT-proBNP measurements in elderly patients presenting to a primary care center with symptoms associated with heart failure. METHODS: A total of 470 elderly patients (age range 65-86 years) presenting with symptoms of heart failure were recruited from primary healthcare. In addition to clinical examination and echocardiography, hs-cTnT and NT-proBNP plasma concentrations were measured. All patients were followed for 10 years, and cardiovascular mortality was registered. RESULTS: By use of the hs-cTnT assay, 80.4% of the population had plasma concentrations above the lower detection limit of the assay. Of those displaying a plasma concentration of hs-cTnT andgt;99th percentile of a healthy population, 43% also had an NT-proBNP concentration in the fourth quartile (andgt;507 ng/L). In the multivariate analysis, we observed a 2.5-fold increased risk for cardiovascular mortality in individuals with a plasma NT-proBNP concentration andgt;507 ng/L (P andlt; 0.0001). Conversely, patients with hs-cTnT andgt;99th percentile displayed an approximately 2-fold increased risk for cardiovascular mortality (P = 0.0002). Combining the 2 biomarkers, NT-proBNP concentrations andgt;507 ng/L with hs-cTnT andgt;99th percentile increased the risk 3-fold, even after adjustment for clinical variables such as age, sex, impaired estimated glomerular filtration rate, and anemia (P andlt; 0.0001). CONCLUSIONS: hs-cTnT and NT-proBNP measurements combined provide better prognostic information than using either biomarker separately in elderly patients with symptoms associated with heart failure.

  • 20.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Ericsson, Anne
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Are There Any Significant Differences Between Females and Males in the Management of Heart Failure? Gender Aspects of an Elderly Population With Symptoms Associated With Heart Failure2009In: JOURNAL OF CARDIAC FAILURE, ISSN 1071-9164, Vol. 15, no 6, p. 501-507Article in journal (Refereed)
    Abstract [en]

    Background: An increasing interest has been shown in potential l., 11 With heart failure (HF), a serious condition for the individual. To evaluate whether there are any differences ill the prevalence of HF, cardiac function, biomarkers. and the treatment of HF with respect to gender. Methods and Results: All persons ages 70 to 80 in a rural municipality were invited to participate ill the project 876 persons accepted. Three cardiologists evaluated the patients including a new history, clinical examination. electrocardiogram, chest x-ray. blood samples. and Doppler echocardiography to assess both Systolic and diastolic function. The patients were followed during a mean period of 8 years. Conclusion: Females hypertension more frequently and included fewer smokers than their male Counterparts. A Female preponderance was seen in those with preserved systolic function. whereas males predominated among those with systolic dysfunction. During the follow-up period, 20% of the males and 14% of the females died of cardiovascular diseases. The results did not show any inferior treatment of females with HF. but it clearly was more difficult to correctly classify female patients presenting with symptoms of HE

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  • 21.
    Alehagen, Urban
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Eriksson, H
    Hall, C
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    B-type natriuretic peptides as markers of left ventricular function in the elderly2001In: European Heart Journal, ISSN 0195-668X, E-ISSN 1522-9645, Vol. 22, p. 304-304Conference paper (Other academic)
  • 22.
    Alehagen, Urban
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Eriksson, H
    Nylander, E
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Overtreatment as well as undertreatment of heart failure is common in elderly patients in primary health care. Objective diagnostics tools are needed2001In: European Heart Journal, ISSN 0195-668X, E-ISSN 1522-9645, Vol. 22, p. 143-143Conference paper (Other academic)
  • 23.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences.
    Eriksson, H.
    Department of Medicine, Sahlgrenska Univ. Hosp.-Östra, Gothenburg, Sweden.
    Nylander, Eva
    Linköping University, Department of Medical and Health Sciences, Clinical Physiology. Linköping University, Faculty of Health Sciences.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences.
    Heart failure in the elderly: characteristics of a Swedish primary health care population2002In: Heart Drug, ISSN 1422-9528, E-ISSN 1424-0556, Vol. 2, no 5, p. 211-220Article in journal (Refereed)
    Abstract [en]

    Background: Heart failure (HF) is a challenge to diagnose and treat according to guidelines. Few studies have been performed in elderly subjects with symptoms that might be associated with HF in primary health care.

    Objective: To study elderly patients presenting with symptoms possibly associated with HF, with respect to systolic and diastolic function, B-type natriuretic peptide (BNP) levels and treatment.

    Methods: A cardiologist examined 415 elderly (65–82 years) patients with symptoms of dyspnoea, fatigue and/or peripheral oedema. All patients underwent echocardiography and plasma BNP determination. Systolic function was determined semiquantitatively, and ejection fraction (EF) <40% was considered to be reduced. Abnormal diastolic function was defined as a reduced ratio of peak early diastolic filling velocity to peak filling velocity at atrial contraction (E/A ratio; age adjusted) or an abnormal pattern of pulmonary venous flow.

    Results: Forty-eight percent of the patients showed abnormal systolic (26%) or diastolic function (22%). A majority of the patients with diastolic HF had relaxation abnormalities and neither pseudonormal nor restrictive filling patterns. Increased levels of BNP were found in the group with impaired systolic function. More than half of those with EF <40% were not receiving angiotensin-converting enzyme inhibitions at all, or were on a suboptimal dose, whereas others were on treatment for an HF diagnosis despite normal cardiac function.

    Conclusion: Diagnostic tools that are more objective than clinical examination are needed for the diagnosis of HF.

  • 24.
    Alehagen, Urban
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Goetze, JP
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Reference intervals and decision limits for B-type natriuretic peptide (BNP) and its precursor (Nt-proBNP) in the elderly2007In: Clinica Chimica Acta, ISSN 0009-8981, E-ISSN 1873-3492, Vol. 382, no 1-2Article in journal (Refereed)
    Abstract [en]

    Background: Elderly patients have the highest prevalence of heart failure (HF). The aims of the study were to establish a reference interval for B-type natriuretic peptide (BNP) and (Nt-proBNP) in elderly people, and to identify clinically relevant decision limits based on long-term outcome. Methods: Plasma concentrations of BNP and Nt-proBNP were measured from two elderly populations: 218 healthy subjects (mean age 73 years, population I), and 474 patients (mean age 73 years, population II) with symptoms associated with HF. Study population II was followed for 6 years with registration of all cardiovascular mortality. Results: An association between both BNP and Nt-proBNP concentrations and age was found. The upper limit for the reference intervals in the healthy elderly (population I) was: BNP ≤ 28 pmol/L (≤ 97 ng/L), and Nt-proBNP ≤ 64 pmol/L (≤ 540 ng/L). Based on cardiovascular mortality, decision limits for BNP (∼ 50 pmol/L, ∼ 170 ng/L) and Nt-proBNP (∼ 200 pmol/L, ∼ 1700 ng/L) (population II) were determined. Conclusions: Besides establishing reference intervals for BNP and Nt-proBNP in an elderly population, a higher clinically relevant decision limit for BNP and Nt-proBNP was identified, indicating additive prognostic information of the peptides on top of measurements by echocardiography. Therefore, both reference intervals and decision limits should be included in clinical practice. © 2007.

  • 25.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Cardiology in Linköping.
    Johansson, Peter
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Cardiology in Linköping.
    Björnstedt, Mikael
    Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden.
    Rosén, Anders
    Linköping University, Department of Clinical and Experimental Medicine, Cell Biology. Linköping University, Faculty of Health Sciences.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Cardiology in Linköping.
    Cardiovascular mortality and N-terminal-proBNP reduced after combined selenium and coenzyme Q10 supplementation: a 5-year prospective randomized double-blind placebo-controlled trial among elderly Swedish citizens2013In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 167, no 5, p. 1860-1866Article in journal (Refereed)
    Abstract [en]

    Background

    Selenium and coenzyme Q10 are essential for the cell. Low cardiac contents of selenium and coenzyme Q10 have been shown in patients with cardiomyopathy, but inconsistent results are published on the effect of supplementation of the two components separately. A vital relationship exists between the two substances to obtain optimal function of the cell. However, reports on combined supplements are lacking.

    Methods

    A 5-year prospective randomized double-blind placebo-controlled trial among Swedish citizens aged 70 to 88 was performed in 443 participants given combined supplementation of selenium and coenzyme Q10 or a placebo. Clinical examinations, echocardiography and biomarker measurements were performed. Participants were monitored every 6th month throughout the intervention.

    The cardiac biomarker N-terminal proBNP (NT-proBNP) and echocardiographic changes were monitored and mortalities were registered. End-points of mortality were evaluated by Kaplan–Meier plots and Cox proportional hazard ratios were adjusted for potential confounding factors. Intention-to-treat and per-protocol analyses were applied.

    Results

    During a follow up time of 5.2 years a significant reduction of cardiovascular mortality was found in the active treatment group vs. the placebo group (5.9% vs. 12.6%; P = 0.015). NT-proBNP levels were significantly lower in the active group compared with the placebo group (mean values: 214 ng/L vs. 302 ng/L at 48 months; P = 0.014). In echocardiography a significant better cardiac function score was found in the active supplementation compared to the placebo group (P = 0.03).

    Conclusion

    Long-term supplementation of selenium/coenzyme Q10 reduces cardiovascular mortality. The positive effects could also be seen in NT-proBNP levels and on echocardiography.

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  • 26.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Lindstedt, G.
    Sahlgren Academy at Gothenburg University, Gothenburg, Sweden.
    Levin, Lars-Åke
    Linköping University, Department of Department of Health and Society, Center for Medical Technology Assessment. Linköping University, Faculty of Health Sciences.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Results from a 6-year follow-up of a Swedish population in primary care regarding b-type natriuretic peptide (bnp) and the aminoterminal fragment of proBNP (n-terminal proBNP) and risk for cardiovascular death in elderly patients with possible heart failure.Manuscript (preprint) (Other academic)
    Abstract [en]

    Abstract

    Heart failure is common in the elderly population and carries a serious prognosis. Identification of risk factors for cardiovascular mortality among primary care patients is important.

    Aim

    To evaluate EDTA-plasma brain natriuretic peptide (BNP) and the aminoterminal fragment of proBNP (N-terminal proBNP) as prognostic markers in elderly with symptoms of mild to moderate heart failure.

    Methods

    From 474 patients attending primary care for symptoms of dyspnoea, fatigue and/or peripheral oedema blood was sampled in plastic tubes containing EDTA in order to measure BNP by non-extraction immunoradiometric assay and of N-terminal proBNP by non-extraction radioimmunoassay. Patients were evaluated with respect to history and clinical- and laboratory examinations with particular reference to cardiac structure and function. Follow-up time was 6 years. A Cox regression analysis was performed to identify the weight of risk variables.

    Conclusion

    During the follow-up period of 6 years the total mortality was 16 % (75 patients out of 474), and cardiovascular mortality was 11% (52 patients). Cardiovascular mortality increased with increased plasma concentration of BNP or N-terminal proBNP. Both pep tides were useful prognostic markers for cardiovascular mortality in patients with heart failure. In those with the highest quartile of plasma concentration of BNP and N=terminal proBNP, 9.9 times and 5.0 times increased risk for CV death were identified respectively.

  • 27.
    Alehagen, Urban
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Lindstedt, G
    Göteborgs universitet.
    Levin, Lars-Åke
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, Center for Medical Technology Assessment.
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Risk of cardiovascular death in elderly patients with possible heart failure. B-type natriuretic peptide (BNP) and the aminoterminal fragment of ProBNP (N-terminal proBNP) as prognostic indicators in a 6-year follow-up of a primary care population2005In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 100, no 1, p. 125-133Article in journal (Refereed)
    Abstract [en]

    Heart failure is common in the elderly population and carries a serious prognosis. We evaluated EDTA-plasma B-type natriuretic peptide (brain natriuretic peptide, BNP) and the aminoterminal fragment of proBNP (N-terminal proBNP) as prognostic markers in elderly primary care patients with symptoms of heart failure. Methods: From 474 patients attending primary care for symptoms of dyspnea, fatigue and/or peripheral edema, blood was sampled in plastic tubes containing EDTA to measure BNP by non-extraction immunoradiometric assay and N-terminal proBNP by non-extraction radioimmunoassay. Patients were evaluated with respect to history and function by NYHA classification and Doppler echocardiography. Follow-up time was 6 years. Cox regression analysis was performed to identify the weight of risk variables. Conclusion: Total 6-year mortality was 20% (102 patients out of 510), and cardiovascular (CV) mortality was 14% (71 patients, 70% of total mortality). BNP and N-terminal proBNP were essentially equally useful as prognostic markers. In patients with the highest quartiles of plasma concentration of BNP and N-terminal proBNP, respectively, the risk of cardiovascular mortality was 10 and 4.8 times, respectively, higher than that in those in the lowest quartile. Peptide concentrations varied widely within all functional groups including those with normal echocardiographic findings. Plasma concentrations of BNP and N-terminal proBNP give important prognostic information concerning risk of cardiovascular mortality. Cost-effective "clinical pathways" should be outlined for patients with elevated peptide concentrations. © 2005 Elsevier Ireland Ltd. All rights reserved.

  • 28.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre. Linköping University, Faculty of Health Sciences.
    Lindstedt, G.
    Sahlgren Academy at Gothenburg University, Gothenburg, Sweden.
    Levin, Lars-Åke
    Linköping University, Department of Department of Health and Society, Center for Medical Technology Assessment. Linköping University, Faculty of Health Sciences.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    The risk of cardiovascular death in elderly patients with possible heart failure: results from a 6-year follow-up of a Swedish primary care population2005In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 100, no 1, p. 17-27Article in journal (Refereed)
    Abstract [en]

    Little is known about the prognosis and clinical variables influencing the prognosis among elderly patients in primary health care with mild to moderate heart failure.

    Aim: To evaluate the risk of cardiovascular mortality in elderly patients with symptoms of heart failure with respect to systolic and diastolic function, and functional impairment. To evaluate prognostic determinants and to risk-stratify the patients.

    Methods: A cardiologist examined 510 patients, out of 548 invited, attending primary care for symptoms of dyspnoea, fatigue and/or peripheral oedema and assessed New York Heart Association (NYHA) functional class. Examination by Doppler echocardiography was done in 454 patients, 56 patients being excluded because of, e.g., atrial fibrillation. Abnormal systolic function was defined as ejection fraction <40%. The diastolic function was evaluated using the mitral inflow and pulmonary venous flow variables. Different clinical and echocardiographic variables were analysed using a Cox regression analysis to identify those most influencing the risk of cardiovascular mortality.

    Conclusion: Abnormal systolic and/or diastolic function was found in 219 patients (48% of the 454 patients who could be echocardiographically completely investigated). The follow-up period was 6 years. Total mortality was 20%, and cardiovascular mortality was 14% (70% of total mortality). Cardiovascular mortality was high in patients with severely impaired functional capacity and ejection fraction <40% at the start of the study. Risk variables identified were male gender, diabetes mellitus, impaired functional capacity and abnormal cardiac function by echocardiography. A prognostic score model using simple clinical variables (gender, NYHA class, cardiac function) was developed to assess the risk of cardiovascular death in order to identify patients with high, moderate or low risk. In a ROC curve analysis, the AUC for clinical variables was only 0.75, whereas the AUC for clinical variables and echocardiography was 0.78, indicating that the additional prognostic information obtained by Doppler echocardiography was rather small.

  • 29.
    Alehagen, Urban
    et al.
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Lindstedt, Göran
    Sahlgren Academy at Gothenburg University, Gothenburg, Sweden.
    Eriksson, Henry
    Department of Medicine, Sahlgrenska University Hospital-Östra, Gothenburg, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Utility of the amino-terminal fragment of pro-brain natriuretic peptide in plasma for the evaluation of cardiac dysfunction in elderly patients in primary health care2003In: Clinical Chemistry, ISSN 0009-9147, E-ISSN 1530-8561, Vol. 49, no 8, p. 1337-1346Article in journal (Refereed)
    Abstract [en]

    Background: The aims of this study were to measure the N-terminal fragment of pro-brain natriuretic peptide (proBNP) in plasma in medical conditions commonly found in primary care and to evaluate the utility of these measurements in identifying impaired cardiac function in elderly patients with symptoms associated with heart failure.

    Methods: We studied 415 patients (221 men and 194 women; mean age, 72 years) who had contacted a primary healthcare center for dyspnea, fatigue, and/or peripheral edema. One cardiologist evaluated the patients in terms of history, physical examination, functional capacity, electrocardiography, and suspicion of heart failure. Plasma N-terminal proBNP was measured by an in-house RIA. An ejection fraction ≤40% by Doppler echocardiography was regarded as reduced cardiac function. Abnormal diastolic function was defined as an abnormal mitral inflow defined as reduced ratio of peak early diastolic filling velocity to peak filling velocity at atrial contraction (E/A ratio), or as abnormal pulmonary venous flow pattern.

    Results: Patients with impaired functional capacity, impaired systolic function, and/or impaired renal function had significantly increased N-terminal proBNP concentrations. By multiple regression analysis, N-terminal proBNP concentrations were also influenced by ischemic heart disease, cardiac enlargement, and certain medications but not by increased creatinine. No gender differences were observed. Patients with isolated diastolic dysfunction attributable to relaxation abnormali-ties had lower concentrations than those with normal cardiac function, whereas those with pseudonormal E/A ratios or restrictive filling patterns had higher concentrations.

    Conclusions: Plasma N-terminal proBNP concentrations increase as a result of impaired systolic function, age, impaired renal function, cardiac ischemia and enlargement, and certain medications. Values are high in diastolic dysfunction with pseudonormal patterns, but not in patients with relaxation abnormalities. An increase in plasma N-terminal proBNP might be an earlier sign of abnormal cardiac function than abnormalities identified by currently used echocardiographic measurements.

  • 30.
    Alehagen, Urban
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Svensson, E.
    Swedish Defence Research Agency, Division of Command and Control Systems, Department of Man-System Interaction, Linköping, Sweden.
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Natriuretic Peptide Biomarkers as Information Indicators in Elderly Patients With Possible Heart Failure Followed Over Six Years: A Head-to-Head Comparison of Four Cardiac Natriuretic Peptides2007In: Journal of Cardiac Failure, ISSN 1071-9164, E-ISSN 1532-8414, Vol. 13, no 6, p. 452-461Article in journal (Refereed)
    Abstract [en]

    Background: Little is known about the differences between natriuretic peptides used to evaluate elderly patients with heart failure. The aim of the study was to evaluate the information and the power to predict cardiovascular mortality derived from an analysis of cardiac natriuretic peptides from the same study population and at the same time. Methods and Results: In all, 415 elderly patients (age 65-82 years) in primary health care were evaluated and followed for 6 years. All patients had symptoms of heart failure and were examined by a cardiologist. An electrocardiogram and chest x-rays were taken, and the systolic and diastolic functions were assessed using Doppler echocardiography. Brain natriuretic peptide (BNP), N-terminal proBNP, atrial natriuretic peptide (ANP), and N-terminal proANP were analyzed. All 4 peptides were associated with age, and only 1 of them showed any gender difference. Three of the 4 peptides (not ANP) provided important information for identifying patients with impaired systolic function and diastolic dysfunction (pseudonormal or restrictive filling pattern), and for assessing the risk of cardiovascular death. Conclusions: Cardiac natriuretic peptides are useful tools for evaluating elderly patients with heart failure. Three of the 4 peptides were very similar. ANP exhibits inferior properties and cannot be recommended in clinical practice. © 2007 Elsevier Inc. All rights reserved.

  • 31.
    Bank, Ingrid E. M.
    et al.
    University of Medical Centre Utrecht, Netherlands.
    Gijsberts, Crystel M.
    University of Medical Centre Utrecht, Netherlands; ICIN Netherlands Heart Institute, Netherlands.
    Teng, Tiew-Hwa K.
    Singhealth, Singapore.
    Benson, Lina
    Karolinska Institute, Sweden.
    Sim, David
    Singhealth, Singapore.
    Shuan Daniel Yeo, Poh
    Tan Tock Seng Hospital, Singapore.
    Yee Ong, Hean
    Khoo Teck Puat Hospital, Singapore.
    Jaufeerally, Fazlur
    Singapore Gen Hospital, Singapore.
    Leong, Gerard K. T.
    Changi Gen Hospital, Singapore.
    Ling, Lieng H.
    National University, Singapore; National University of Health Syst, Singapore.
    Richards, A. Mark
    National University, Singapore; University of Otago, New Zealand.
    de Kleijn, Dominique P. V.
    University of Medical Centre Utrecht, Netherlands; National University, Singapore.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Lund, Lars H.
    Karolinska University Hospital, Sweden.
    Lam, Carolyn S. P.
    Singhealth, Singapore; National University, Singapore; National University, Singapore; Duke NUS Medical Sch, Singapore.
    Prevalence and Clinical Significance of Diabetes in Asian Versus White Patients With Heart Failure2017In: JACC. Heart failure, ISSN 2213-1779, E-ISSN 2213-1787, Vol. 5, no 1, p. 14-24Article in journal (Refereed)
    Abstract [en]

    OBJECTIVES The study sought to compare the prevalence, clinical correlates and prognostic impact of diabetes in Southeast Asian versus white patients with heart failure (HF) with preserved or reduced ejection fraction. BACKGROUND Diabetes mellitus is common in HF and is associated with impaired prognosis. Asia is home to the majority of the worlds diabetic population, yet data on the prevalence and clinical significance of diabetes in Asian patients with HF are sparse, and no studies have directly compared Asian and white patients. METHODS Two contemporary population-based HF cohorts were combined: from Singapore (n 1,002, median [25th to 75th percentile] age 62 [54 to 70] years, 76% men, 19.5% obesity) and Sweden (n =19,537, 77 [68 to 84] years, 60% men, 24.8% obesity). The modifying effect of ethnicity on the relationship between diabetes and clinical correlates or prognosis (HF hospitalization and all-cause mortality) was examined using interaction terms. RESULTS Diabetes was present in 569 (57%) Asian patients versus 4,680 (24%) white patients (p amp;lt; 0.001). Adjusting for clinical covariates, obesity was more strongly associated with diabetes in white patients (odds ratio [OR]: 3.45;. 95% confidence interval [CI]: 2.86 to 4.17) than in Asian patients (OR: 1.82; 95% CI: 1.13 to 2.96; P-interaction = 0.026). Diabetes was more strongly associated with increased HF hospitalization and all-cause mortality in Asian patients (hazard ratio: 1.50; 95% CI: 1.21 to 1.87) than in white patients (hazard ratio: 1.29; 95% CI: 1.22 to 1.36; P-interaction = 0.045). CONCLUSIONS Diabetes was 3-fold more common in Southeast Asian compared to white patients with HF, despite younger age and less obesity, and more strongly associated with poor outcomes in Asian patients than white patients. These results underscore the importance of ethnicity-tailored aggressive strategies to prevent diabetes and its complications. (C) 2017 by the American College of Cardiology Foundation.

  • 32.
    Basic, C.
    et al.
    Univ Gothenburg, Sweden.
    Rosengren, A.
    Univ Gothenburg, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Edner, M.
    Karolinska Inst, Sweden.
    Fu, M.
    Univ Gothenburg, Sweden.
    Zverkova-Sandstrom, T.
    Univ Gothenburg, Sweden.
    Schaufelberger, M.
    Univ Gothenburg, Sweden.
    Sex-related differences among young adults with heart failure in Sweden2022In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 362, p. 97-103Article in journal (Refereed)
    Abstract [en]

    Background: Differences between the sexes among the non-elderly with heart failure (HF) have been insufficiently evaluated. This study aims to investigate sex-related differences in early-onset HF. Methods: Patients aged 18 to 54 years who were registered from 2003 to 2014 in the Swedish Heart Failure Register were included. Each patient was matched with two controls from the Swedish Total Population Register. Data on comorbidities and outcomes were obtained through the National Patient Register and Cause of Death Register. Results: We identified 3752 patients and 7425 controls. Of the patients, 971 (25.9%) were women and 2781 (74.1%) were men with a mean (standard deviation) age of 44.9 (8.4) and 46.4 (7.3) years, respectively. Men had more hypertension and ischemic heart disease, whereas women had more congenital heart disease and obesity. During the median follow-up of 4.87 years, 26.5 and 24.7 per 1000 person-years male and female patients died, compared with 3.61 and 2.01 per 1000 person-years male and female controls, respectively. The adjusted hazard ratios for all-cause mortality, compared with controls, were 4.77 (3.78-6.01) in men and 7.84 (4.85-12.7) in women (p for sex difference = 0.11). When HF was diagnosed at 30, 35, 40, and 45 years, women and men lost up to 24.6 and 24.2, 24.4 and 20.9, 20.5 and 18.3, and 20.7 and 16.5 years of life, respectively. Conclusion: Long-term mortality was similar between the sexes. Women lost more years of life than men.

  • 33.
    Basic, Carmen
    et al.
    Univ Gothenburg, Sweden.
    Rosengren, Annika
    Univ Gothenburg, Sweden.
    Alehagen, Urban
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Edner, Magnus
    Karolinska Inst, Sweden.
    Fu, Michael
    Univ Gothenburg, Sweden.
    Novak, Masuma
    Univ Gothenburg, Sweden.
    Zverkova Sandstrom, Tatiana
    Univ Gothenburg, Sweden.
    Schaufelberger, Maria
    Univ Gothenburg, Sweden.
    Young patients with heart failure: clinical characteristics and outcomes. Data from the Swedish Heart Failure, National Patient, Population and Cause of Death Registers2020In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 22, no 7, p. 1125-1132Article in journal (Refereed)
    Abstract [en]

    Aims The prevalence and hospitalizations of patients with heart failure (HF) aged &lt;55 years have increased in Sweden during the last decades. We aimed to compare characteristics of younger and older patients with HF, and examine survival in patients All patients &gt;= 18 years in the Swedish Heart Failure Register from 2003 to 2014 were included. Data were merged with National Patient and Cause of Death Registers. Among 60 962 patients, 3752 (6.2%) were &lt;55 years, and were compared with 7425 controls from the Population Register. Compared with patients &gt;= 55 years, patients &lt;55 years more frequently had registered diagnoses of obesity, dilated cardiomyopathy, congenital heart disease, and an ejection fraction &lt;40% (9.8% vs. 4.7%, 27.2% vs. 5.5%, 3.7% vs. 0.8%, 67.9% vs. 45.1%, respectively; allP &lt; 0.001). One-year all-cause mortality was 21.2%, 4.2%, and 0.3% in patients &gt;= 55 years, patients &lt;55 years, and controls &lt;55 years, respectively (allP &lt; 0.001). Patients &lt;55 years had a five times higher mortality risk compared with controls [hazard ratio (HR) 5.48, 95% confidence interval (CI) 4.45-6.74]; the highest HR was in patients 18-34 years (HR 38.3, 95% CI 8.70-169; bothP &lt; 0.001). At the age of 20, the estimated life-years lost was up to 36 years for 50% of patients, with declining estimates with increasing age. Conclusion Patients with HF &lt;55 years had different comorbidities than patients &gt;= 55 years. The highest mortality risk relative to that of controls was among the youngest patients.

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  • 34.
    Batra, Gorav
    et al.
    Uppsala Univ, Sweden.
    Aktaa, Suleman
    Univ Leeds, England; Leeds Teaching Hosp NHS Trust, England.
    Benson, Lina
    Karolinska Inst, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Hage, Camilla
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Savarese, Gianluigi
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Vasko, Peter
    Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Gale, Chris P.
    Univ Leeds, England; Leeds Teaching Hosp NHS Trust, England.
    Lund, Lars H.
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Association between heart failure quality of care and mortality: a population-based cohort study using nationwide registries2022In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 24, no 11, p. 2066-2077Article in journal (Refereed)
    Abstract [en]

    Aims To evaluate the quality of heart failure (HF) care using the European Society of Cardiology (ESC) quality indicators (QIs) for HF and to assess whether better quality of care is associated with improved outcomes. Methods and results We performed a nationwide cohort study using the Swedish HF registry, consisting of patients with any type of HF at their first outpatient visit or hospitalization. Independent participant data for quality of HF care was evaluated against the ESC QIs for HF, and association with mortality estimated using multivariable Cox regression. In total, 43 704 patients from 80 hospitals across Sweden enrolled between 2013-2019 were included, with median follow-up 23.6 months. Of the 16 QIs for HF, 13 could be measured and 5 were inversely associated with all-cause mortality during follow-up. Higher attainment (&gt;= 50% vs. &lt;50% attainment) of the composite opportunity-based score (combination of QIs into a single score) for patients with reduced ejection fraction was associated with lower all-cause mortality (adjusted hazard ratio 0.81; 95% confidence interval 0.72-0.91). Attainment of the composite score was less in the outpatient than inpatient setting (adjusted odds ratio 0.85; 95% confidence interval 0.72-0.99). Quality of care varied across hospitals, with assessment of health-related quality of life being the indicator with the widest variation in attainment (interquartile range 61.7%). Conclusion Quality of HF care may be measured using the ESC HF QIs. In Sweden, attainment of HF care evaluated using the QIs demonstrated between and within hospital variation, and many QIs were inversely associated with mortality.

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  • 35.
    Becher, Peter M.
    et al.
    Karolinska Inst, Sweden; Univ Heart & Vasc Ctr Hamburg, Germany; Germany German Ctr Cardiovasc Res DZHK, Germany.
    Schrage, Benedikt
    Karolinska Inst, Sweden; Univ Heart & Vasc Ctr Hamburg, Germany; Germany German Ctr Cardiovasc Res DZHK, Germany.
    Ferrannini, Giulia
    Karolinska Inst, Sweden.
    Benson, Lina
    Karolinska Inst, Sweden.
    Butler, Javed
    Univ Mississippi, MS 39216 USA.
    Carrero, Juan Jesus
    Karolinska Inst, Sweden.
    Cosentino, Francesco
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Mellbin, Linda
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Rosano, Giuseppe M. C.
    IRCCS San Raffaele, Italy.
    Sinagra, Gianfranco
    Univ Trieste, Italy.
    Stolfo, Davide
    Karolinska Inst, Sweden; Univ Trieste, Italy.
    Lund, Lars H.
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Savarese, Gianluigi
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Use of sodium-glucose co-transporter 2 inhibitors in patients with heart failure and type 2 diabetes mellitus: data from the Swedish Heart Failure Registry2021In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 23, no 6, p. 1012-1022Article in journal (Refereed)
    Abstract [en]

    Aims Use of sodium-glucose co-transporter 2 inhibitors (SGLT2i) in real-world heart failure (HF) is poorly characterised. In contemporary patients with HF and type 2 diabetes mellitus (T2DM) we assessed over time SGLT2i use, clinical characteristics and outcomes associated with SGLT2i use. Methods and results Type 2 diabetes patients enrolled in the Swedish HF Registry between 2016-2018 were considered. We performed multivariable logistic regression models to assess the independent predictors of SGLT2i use and Cox regression models in a 1:3 propensity score-matched cohort and relevant subgroups to investigate the association between SGLT2i use and outcomes. Of 6805 eligible HF patients with T2DM, 376 (5.5%) received SGLT2i, whose use increased over time with 12% of patients on treatment at the end of 2018. Independent predictors of SGLT2i use were younger age, HF specialty care, ischaemic heart disease, preserved kidney function, and absence of anaemia. Over a median follow-up of 256 days, SGLT2i use was associated with a 30% lower risk of cardiovascular (CV) death/first HF hospitalisation (hazard ratio 0.70, 95% confidence interval 0.52-0.95), which was consistent regardless of ejection fraction, background metformin treatment and kidney function. SGLT2i use was also associated with a lower risk of all-cause and CV death, HF and CV hospitalisation, and CV death/myocardial infarction/stroke. Conclusion In a contemporary HF cohort with T2DM, SGLT2i use increased over time, was more common with specialist care, younger age, ischaemic heart disease, and preserved renal function, and was associated with lower mortality and morbidity.

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  • 36.
    Becher, Peter Moritz
    et al.
    Univ Heart & Vasc Ctr Hamburg, Germany; German Ctr Cardiovasc Res DZHK, Germany; Karolinska Inst, Sweden.
    Lindberg, Felix
    Karolinska Inst, Sweden.
    Benson, Lina
    Karolinska Inst, Sweden.
    Hage, Camilla
    Karolinska Inst, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Rosenkranz, Stephan
    Univ Cologne, Germany.
    Cosentino, Francesco
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Rosano, Giuseppe M. C.
    St Georges Univ Hosp, Italy.
    Blankenberg, Stefan
    Univ Heart & Vasc Ctr Hamburg, Germany; German Ctr Cardiovasc Res DZHK, Germany; Univ Med Ctr Hamburg Eppendorf, Germany.
    Kirchhof, Paulus
    Univ Heart & Vasc Ctr Hamburg, Germany; German Ctr Cardiovasc Res DZHK, Germany; Univ Birmingham, England.
    Braunschweig, Frieder
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Lund, Lars H.
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Savarese, Gianluigi
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Phenotyping patients with chronic obstructive pulmonary disease and heart failure2024In: ESC Heart Failure, E-ISSN 2055-5822Article in journal (Refereed)
    Abstract [en]

    AimsChronic obstructive pulmonary disease (COPD) and heart failure (HF) are prevalent comorbidities associated with significant morbidity/mortality. We assessed prevalence of, patient profiles and outcomes associated with COPD across the ejection fraction (EF) spectrum.MethodsHF patients enrolled in the Swedish HF registry between 2005 and 2021 were considered. Multivariable logistic regression models were fitted to assess patient characteristics independently associated with COPD and Cox regression models for investigating the associations between COPD and outcomes, that is, morbidity/mortality.ResultsAmong 97 904 HF patients, COPD prevalence was 13%, highest in HF with preserved EF [HFpEF: 16%, HF with mildly reduced EF (HFmrEF): 12%, HF with reduced EF (HFrEF): 11%]. Key patient characteristics independently associated with a diagnosis of COPD included higher EF, female sex, smoking, obstructive sleep disorder, peripheral artery disease, a lower educational level, more severe HF, more likely mineralocorticoid receptor antagonist and diuretic use but less likely use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers/angiotensin-receptor-neprilysin inhibitors (not in HFrEF), beta-blockers, HF device therapies, and follow-up in HF nurse-led clinics. COPD was independently associated with a 15% higher risk of cardiovascular (CV) death/HF hospitalization [hazard ratio: 1.15 (95% confidence interval: 1.11-1.18)], CV death, non-CV death, all-cause death and HF hospitalizations, regardless of EF.ConclusionsCOPD was present in every eight patient with HF, and more common with preserved EF. Patients with COPD had more severe HF, heavier comorbidity burden and worse morbidity/mortality regardless of EF. Our results call for improved diagnostic and management strategies in patients with HF and COPD.

  • 37.
    Becher, Peter Moritz
    et al.
    Karolinska Inst, Sweden; Univ Med Ctr Hamburg Eppendorf, Germany; German Ctr Cardiovasc Res DZHK, Germany.
    Savarese, Gianluigi
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Benson, Lina
    Karolinska Inst, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Karlström, Patric
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Ryhov Cty Hosp Reg Jonkoping Cty, Sweden.
    Mol, Peter G. M.
    Univ Groningen, Netherlands.
    Metra, Marco
    Univ Brescia, Italy.
    Bhatt, Deepak L.
    Mt Sinai Hlth Syst, NY 10029 USA.
    Pitt, Bertram
    Univ Michigan, MI 48109 USA.
    Lund, Lars H.
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Eligibility for sotagliflozin in a real-world heart failure population based on the SOLOIST-WHF trial enrolment criteria: data from the Swedish heart failure registry2023In: European Heart Journal - Cardiovascular Pharmacotherapy, ISSN 2055-6837, E-ISSN 2055-6845, Vol. 9, no 4, p. 343-352Article in journal (Refereed)
    Abstract [en]

    Aims The SOLOIST-WHF trial demonstrated efficacy of sotagliflozin in patients with type 2 diabetes mellitus (T2DM) and recent worsening heart failure (HF) regardless of ejection fraction (EF). Selection criteria in trials may limit their generalizability. Therefore, we aimed to investigate eligibility for sotagliflozin based on the SOLOIST-WHF criteria in a real-world HF population. Methods and results SOLOIST-WHF criteria were applied to patients stabilized after HF hospitalization in the Swedish HF Registry according to (i) literal scenario (all inclusion/exclusion criteria) or (ii) pragmatic scenario (only criteria likely to influence treatment decisions). Of 5453 inpatients with T2DM and recent worsening HF, 51.4% had reduced EF (HFrEF), 19.1% mildly reduced (HFmrEF), and 29.5% preserved EF (HFpEF). Eligibility (literal) was: 27.2% (32.4% in HFrEF, 24.7% in HFmrEF, 19.7% in HFpEF) and eligibility (pragmatic) was 62.8% (69.1%, 60.3%, 53.4%, respectively). In the literal scenario, criteria limiting eligibility were HF duration &lt;3 months, eGFR &lt;30 ml/min/1.73 m(2), age &gt;85 years, acute coronary syndrome &lt;3 months, and insufficiently high N-terminal pro-B-type natriuretic peptide levels. Eligible vs. non-eligible patients had more severe HF, higher cardiovascular (CV) comorbidity burden, higher use of HF treatments, and higher event rates (all-cause death 30.8 vs. 27.2 per 100 patient-years, CV death 19.1 vs. 16.6, and HF hospitalization 36.7 vs. 24.0). Conclusion In this large, real-world HF cohort with T2DM, similar to 1/3 of patients were eligible for sotagliflozin in the literal and similar to 2/3 of patients in the pragmatic scenario. Eligible patients had more severe HF and higher event rates, in particular CV and HF events.

  • 38.
    Becher, Peter Moritz
    et al.
    Karolinska Inst, Sweden; Univ Heart & Vasc Ctr Hamburg, Germany; German Ctr Cardiovasc Res DZHK, Germany.
    Schrage, Benedikt
    Karolinska Inst, Sweden; Univ Heart & Vasc Ctr Hamburg, Germany; German Ctr Cardiovasc Res DZHK, Germany.
    Benson, Lina
    Karolinska Inst, Sweden.
    Fudim, Marat
    Duke Univ, NC 27710 USA; Duke Clin Res Inst, NC USA.
    Cabrera, Carin Corovic
    Karolinska Inst, Sweden; Soder Sjukhuset, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Rosano, Giuseppe M. C.
    St Georges Hosp Med Sch, England; IRCCS San Raffaele Roma, Italy.
    Jankowska, Ewa A.
    Wroclaw Med Univ, Poland; Univ Hosp, Poland.
    Anker, Stefan D.
    Dept Cardiol CVK, Germany; Berlin Inst Hlth Ctr Regenerat Therapies BCRT, Germany; German Ctr Cardiovasc Res DZHK, Germany; Charite Univ Med Berlin, Germany.
    Lund, Lars H.
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Savarese, Gianluigi
    Karolinska Inst, Sweden; Karolinska Univ Hosp, Sweden.
    Phenotyping heart failure patients for iron deficiency and use of intravenous iron therapy: data from the Swedish Heart Failure Registry2021In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 23, no 11, p. 1844-1854Article in journal (Refereed)
    Abstract [en]

    Aims Iron deficiency (ID) is associated with poor prognosis regardless of anaemia. Intravenous iron improves quality of life and outcomes in patients with ID and heart failure (HF) with reduced ejection fraction (HFrEF). In the Swedish HF registry, we assessed (i) frequency and predictors of ID testing; (ii) prevalence and outcomes of ID with/without anaemia; (iii) use of ferric carboxymaltose (FCM) and its predictors in patients with ID. Methods and results We used multivariable logistic regressions to assess patient characteristics independently associated with ID testing/FCM use, and Cox regressions to assess risk of outcomes associated with ID. Of 21 496 patients with HF and any ejection fraction enrolled in 2017-2018, ID testing was performed in 27%. Of these, 49% had ID and more specifically 36% had ID-/anaemia-, 15% ID-/anaemia+, 29% ID+/anaemia-, and 20% ID+/anaemia+ (48%, 39%, 13%, 30% and 18% in HFrEF, respectively). Risk of recurrent all-cause hospitalizations was higher in patients with ID regardless of anaemia. Of 1959 patients with ID, 19% received FCM (24% in HFrEF). Important independent predictors of ID testing and FCM use were anaemia, higher New York Heart Association class, having HFrEF, and referral to HF specialty care. Conclusion In this nationwide HF registry, ID testing occurred in only about a quarter of the patients. Among tested patients, ID was present in one half, but only one in five patients received FCM indicating low adherence to current guidelines on screening and treatment.

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  • 39.
    Berg, Jenny
    et al.
    Karolinska Institute, Sweden; OptumInsight, Sweden.
    Lindgren, Peter
    Karolinska Institute, Sweden; IVBAR, Sweden.
    Mejhert, Marit
    Ersta Hospital, Sweden; Karolinska Institute, Sweden.
    Edner, Magnus
    Karolinska University Hospital, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Kahan, Thomas
    Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden.
    Determinants of Utility Based on the EuroQol Five-Dimensional Questionnaire in Patients with Chronic Heart Failure and Their Change Over Time: Results from the Swedish Heart Failure Registry2015In: Value in Health, ISSN 1098-3015, E-ISSN 1524-4733, Vol. 18, no 4, p. 439-448Article in journal (Refereed)
    Abstract [en]

    Background: There is limited information on drivers of utilities in patients with chronic heart failure (CHF). Objectives: To analyze determinants of utility in CHF and drivers of change over 1 year in a large sample from clinical practice. Methods: We included 5334 patients from the Swedish Heart Failure Registry with EuroQol five-dimensional questionnaire information available following inpatient or outpatient care during 2008 to 2010; 3495 had 1-year follow-up data Utilities based on Swedish and UK value sets were derived. We applied ordinary least squares (OLS) and two-part models for utility at inclusion and OLS regression for change over 1 year, all with robust standard errors. We assessed the predictive accuracy of both models using cross-validation. Results: Patients mean age was 73 years, 65% were men, 19% had a left ventricular ejection fraction of 50% or more, 23% had 40% to 49%, 27% had 30% to 39%, and 31% had less than 30%. For both models and value sets, utility at inclusion was affected by sex, age, New York Heart Association class, ejection fraction, hemoglobin, blood pressure, lung disease, diabetes, angiotensin-converting enzyme inhibitors/angiotensin receptor blockers, nitrates, antiplatelets, and diuretics. The OLS model performed slightly better than did the two-part model on a population level and for capturing utility ranges. Change in utility over 1 year was influenced by age, sex, and (measured at inclusion) disease duration, New York Heart Association class, blood pressure, ischemic heart disease, lung disease, angiotensin-converting enzyme inhibitors/angiotensin receptor blockers, and antiplatelets. Conclusions: Utilities in CHF and their change over time are influenced by diverse demographic and clinical factors. Our findings can be used to target clinical interventions and for economic evaluations of new therapies.

  • 40.
    Bergh, Claes-Hakan
    et al.
    Sahlgrens University Hospital.
    Andersson, Bert
    Sahlgrens University Hospital.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Health Sciences, Cardiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Forfang, Kolbjorn
    Rikshosp University Hospital.
    Kivikko, Matti
    Orion Pharma.
    Sarapohja, Toni
    Orion Pharma.
    Ullman, Bengt
    Soder Sjukhuset, Stockholm.
    Wikstrom, Gerhard
    Akad Hospital.
    Intravenous levosimendan vs. dobutamine in acute decompensated heart failure patients on beta-blockers2010In: EUROPEAN JOURNAL OF HEART FAILURE, ISSN 1388-9842, Vol. 12, no 4, p. 404-410Article in journal (Refereed)
    Abstract [en]

    Aims The aim of this study is to compare the effects of a 24 h intravenous infusion of levosimendan and a 48 h infusion of dobutamine on invasive haemodynamics in patients with acutely decompensated chronic NYHA class III- IV heart failure. All patients were receiving optimal oral therapy including a beta- blocker. Methods and results This was a multinational, randomized, double- blind, phase IV study in 60 patients; follow- up was 1 month. There was a significant increase in cardiac index and a significant decrease in pulmonary capillary wedge pressure (PCWP) at 24 and 48 h for both dobutamine and levosimendan. The improvement in cardiac index with levosimendan was not significantly different from dobutamine at 24 h (P = 0.07), but became significant at 48 h (0.44 +/- 0.56 vs. 0.66 +/- 0.63 L/min/m(2); P = 0.04). At 24 h, the reduction in the mean change in PCWP from baseline was similar for levosimendan and dobutamine, however, at 48 h the difference was more marked for levosimendan (23.6 +/- 7.6 vs. 28.3 +/- 6.7 mmHg; P = 0.02). No difference was observed between the groups for change in NYHA class, beta- blocker use, hospitalizations, treatment discontinuations or rescue medication use. Reduction in B-type natriuretic peptide (BNP) was significantly greater with levosimendan at 48 h (P = 0.03). According to physicians assessment, the improvement in fatigue (P = 0.01) and dyspnoea (P = 0.04) was in favour of dobutamine treatment, and hypotension was significantly more frequent with levosimendan (P = 0.007). No increase in atrial fibrillation or ventricular tachycardia was seen in either group. Conclusion A 24 h levosimendan infusion achieved haemodynamic and neurohormonal improvement that was at least comparable at 24 h and superior at 48 h to a 48 h dobutamine infusion.

  • 41.
    Bergström, Anders
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Andersson, B
    Edner, M
    Dept Cardiol, Linkoping, Sweden Gothenburg Univ, S-41124 Gothenburg, Sweden Linkoping Univ, S-58183 Linkoping, Sweden Danderyd Hosp, Stockholm, Sweden.
    Nylander, E
    Persson, H
    Dept Cardiol, Linkoping, Sweden Gothenburg Univ, S-41124 Gothenburg, Sweden Linkoping Univ, S-58183 Linkoping, Sweden Danderyd Hosp, Stockholm, Sweden.
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Cardiology . Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Carvedilol improves diastolic function in patients with diastolic heart failure.2001In: Circulation, ISSN 0009-7322, E-ISSN 1524-4539, Vol. 104, no 17, p. 3388-Conference paper (Other academic)
  • 42.
    Bergström, Anders
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Andersson, B
    Edner, M
    Nylander, Eva
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Clinical Physiology. Östergötlands Läns Landsting, Heart Centre, Department of Clinical Physiology.
    Persson, H
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Effect of carvedilol on diastolic function in patients with diastolic heart failure and preserved systolic function. Results of the Swedish Doppler-echocardiographic study (SWEDIC)2004In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 6, no 4, p. 453-461Article in journal (Refereed)
    Abstract [en]

    Aim: The purpose of this study was to investigate the effects of carvedilol on diastolic function (DF) in heart failure patients with preserved left ventricular (LV) systolic function and abnormal DF. Patients and Methods: We randomised 113 patients with diastolic heart failure (DHF) (symptomatic, with normal systolic LV function and abnormal DF) into a double blind multi-centre study. The patients received either carvedilol or matching placebo in addition to conventional treatment. After uptitration, treatment was continued for 6 months. Two-dimensional and Doppler echocardiography were used for quantification of LV function at baseline and at follow-up. Four different DF variables were evaluated by Doppler echocardiography: mitral flow E:A ratio, deceleration time (DT), isovolumic relaxation time (IVRT) and the ratio of systolic/diastolic pulmonary venous flow velocity (pv-S/D). Primary endpoint was change in the integrated quantitative assessment of all four variables during the study. Results: Ninety-seven patients completed the study. A mitral flow pattern reflecting a relaxation abnormality was recorded in 95 patients. There was no effect on the primary endpoint, although a trend towards a better effect in carvedilol treated patients was noticed in patients with heart rates above 71 beats per minute. At the end of the study, there was a statistically significant improvement in E:A ratio in patients treated with carvedilol (0.72 to 0.83) vs. placebo (0.71 to 0.76), P<0.05. Conclusions: Treatment with carvedilol resulted in a significant improvement in E:A ratio in patients with heart failure due to a LV relaxation abnormality. E:A ratio was found to be the most useful variable to identify diastolic dysfunction in this patient population. This effect was observed particularly in patients with higher heart rates at baseline. © 2004 European Society of Cardiology.

  • 43.
    Bilchick, Kenneth C.
    et al.
    University of Virginia Health Syst, VA USA.
    Wang, Yongfei
    Yale New Haven Medical Centre, CT 06504 USA; Yale University, CT USA.
    Cheng, Alan
    Johns Hopkins Medical Institute, MD 21205 USA.
    Curtis, Jeptha P.
    Yale New Haven Medical Centre, CT 06504 USA; Yale University, CT USA.
    Dharmarajan, Kumar
    Yale New Haven Medical Centre, CT 06504 USA; Yale University, CT USA.
    Stukenborg, George J.
    University of Virginia, VA USA.
    Shadman, Ramin
    Southern Calif Permanente Medical Grp, CA USA.
    Anand, Inder
    University of Minnesota, MN USA.
    Lund, Lars H.
    Karolinska University Hospital, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Sartipy, Ulrik
    Karolinska Institute, Sweden; Karolinska University Hospital, Sweden.
    Maggioni, Aldo
    Italian Assoc Hospital Cardiologists, Italy.
    Swedberg, Karl
    University of Gothenburg, Sweden; Imperial Coll, England.
    OConner, Chris
    Inova Healthcare Syst, VA USA.
    Levy, Wayne C.
    University of Washington, WA USA.
    Seattle Heart Failure and Proportional Risk Models Predict Benefit From Implantable Cardioverter-Defibrillators2017In: Journal of the American College of Cardiology, ISSN 0735-1097, E-ISSN 1558-3597, Vol. 69, no 21, p. 2606-2618Article in journal (Refereed)
    Abstract [en]

    BACKGROUND Recent clinical trials highlight the need for better models to identify patients at higher risk of sudden death. OBJECTIVES The authors hypothesized that the Seattle Heart Failure Model (SHFM) for overall survival and the Seattle Proportional Risk Model (SPRM) for proportional risk of sudden death, including death from ventricular arrhythmias, would predict the survival benefit with an implantable cardioverter-defibrillator (ICD). METHODS Patients with primary prevention ICDs from the National Cardiovascular Data Registry (NCDR) were compared with control patients with heart failure (HF) without ICDs with respect to 5-year survival using multivariable Cox proportional hazards regression. RESULTS Among 98,846 patients with HF (87,914 with ICDs and 10,932 without ICDs), the SHFM was strongly associated with all-cause mortality (p amp;lt; 0.0001). The ICD-SPRM interaction was significant (p amp;lt; 0.0001), such that SPRM quintile 5 patients had approximately twice the reduction in mortality with the ICD versus SPRM quintile 1 patients (adjusted hazard ratios [HR]: 0.602; 95% confidence interval [CI]: 0.537 to 0.675 vs. 0.793; 95% CI: 0.736 to 0.855, respectively). Among patients with SHFM-predicted annual mortality amp;lt;= 5.7%, those with a SPRM-predicted risk of sudden death below the median had no reduction in mortality with the ICD (adjusted ICD HR: 0.921; 95% CI: 0.787 to 1.08; p = 0.31), whereas those with SPRM above the median derived the greatest benefit (adjusted HR: 0.599; 95% CI: 0.530 to 0.677; p amp;lt; 0.0001). CONCLUSIONS The SHFM predicted all-cause mortality in a large cohort with and without ICDs, and the SPRM discriminated and calibrated the potential ICD benefit. Together, the models identified patients less likely to derive a survival benefit from primary prevention ICDs. (J Am Coll Cardiol 2017;69:2606-18) (C) 2017 by the American College of Cardiology Foundation.

  • 44.
    Bilchick, Kenneth C.
    et al.
    Univ Virginia Hlth Syst, VA USA.
    Wang, Yongfei
    Yale New Haven Med Ctr, CT USA; Yale Univ, CT 06511 USA.
    Curtis, Jeptha P.
    Yale New Haven Med Ctr, CT USA; Yale Univ, CT 06511 USA.
    Shadman, Ramin
    Southern Calif Permanente, CA USA.
    Dardas, Todd F.
    Univ Washington, WA 98195 USA.
    Anand, Inder
    Univ Minnesota, MN 55455 USA.
    Lund, Lars H.
    Karolinska Univ Hosp, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart Center, Department of Cardiology in Linköping.
    Sartipy, Ulrik
    Karolinska Univ Hosp, Sweden; Karolinska Inst, Sweden.
    Levy, Wayne C.
    Univ Washington, WA 98195 USA.
    Survival Probability and Survival Benefit Associated With Primary Prevention Implantable Cardioverter-Defibrillator Generator Changes2022In: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, E-ISSN 2047-9980, Vol. 11, no 13, article id e023743Article in journal (Refereed)
    Abstract [en]

    Background As patients derive variable benefit from generator changes (GCs) of implantable cardioverter-defibrillators (ICDs) with an original primary prevention (PP) indication, better predictors of outcomes are needed. Methods and Results In the National Cardiovascular Data Registry ICD Registry, patients undergoing GCs of initial non-cardiac resynchronization therapy PP ICDs in 2012 to 2016, predictors of post-GC survival and survival benefit versus control heart failure patients without ICDs were assessed. These included predicted annual mortality based on the Seattle Heart Failure Model, left ventricular ejection fraction (LVEF) &gt;35%, and the probability that a patients death would be arrhythmic (proportional risk of arrhythmic death [PRAD]). In 40 933 patients undergoing GCs of initial noncardiac resynchronization therapy PP ICDs (age 67.7 +/- 12.0 years, 24.5% women, 34.1% with LVEF &gt;35%), Seattle Heart Failure Model-predicted annual mortality had the greatest effect size for decreased post-GC survival (P&lt;0.0001). Patients undergoing GCs of initial noncardiac resynchronization therapy PP ICDs with LVEF &gt;35% had a lower Seattle Heart Failure Model-adjusted survival versus 23 472 control heart failure patients without ICDs (model interaction hazard ratio, 1.21 [95% CI, 1.11-1.31]). In patients undergoing GCs of initial noncardiac resynchonization therapy PP ICDs with LVEF &lt;= 35%, the model indicated worse survival versus controls in the 21% of patients with a PRAD 65%. The association of the PRAD with survival benefit or harm was similar in patients with or without pre-GC ICD therapies. Conclusions Patients who received replacement of an ICD originally implanted for primary prevention and had at the time of GC either LVEF &gt;35% alone or both LVEF &lt;= 35% and PRAD &lt;43% had worse survival versus controls without ICDs.

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  • 45.
    Björck, Hanna
    et al.
    Linköping University, Department of Medical and Health Sciences, Physiology. Linköping University, Faculty of Health Sciences.
    Eriksson, Per
    Karolinska Institute, Stockholm.
    Alehagen, Urban
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Debasso, Rachel
    Linköping University, Department of Medical and Health Sciences, Physiology. Linköping University, Faculty of Health Sciences.
    Ljungberg, Liza
    Linköping University, Department of Medical and Health Sciences, Pharmacology. Linköping University, Faculty of Health Sciences.
    Persson, Karin
    Linköping University, Department of Medical and Health Sciences, Pharmacology. Linköping University, Faculty of Health Sciences.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Cardiology UHL.
    Länne, Toste
    Linköping University, Department of Medical and Health Sciences, Physiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Thoracic and Vascular Surgery in Östergötland.
    Gender-Specific Association of the Plasminogen Activator Inhibitor-1 4G/5G Polymorphism With Central Arterial Blood Pressure2011In: American Journal of Hypertension, ISSN 0895-7061, E-ISSN 1941-7225, Vol. 24, no 7, p. 802-808Article in journal (Refereed)
    Abstract [en]

    BACKGROUND The functional plasminogen activator inhibitor-1 (PAI-1) 4G/5G polymorphism has previously been associated with hypertension. In recent years, central blood pressure, rather than brachial has been argued a better measure of cardiovascular damage and clinical outcome. The aim of this study was to investigate the possible influence of the 4G/5G polymorphism on central arterial blood pressure in a cohort of elderly individuals. METHODS We studied 410 individuals, 216 men and 194 women, aged 70-88. Central pressures and pulse waveforms were calculated from the radial artery pressure waveform by the use of the SphygmoCor system and a generalized transfer function. Brachial pressure was recorded using oscillometric technique (Dinamap, Critikon, Tampa, FL). PAI-1 antigen was determined in plasma. RESULTS The results showed that central pressures were higher in women carrying the PAI-1 4G/4G genotype compared to female carriers of the 5G/5G genotype, (P = 0.025, P = 0.002, and P = 0.002 for central systolic-, diastolic-, and mean arterial pressure, respectively). The association remained after adjustment for potentially confounding factors related to hypertension. No association of the PAI-1 genotype with blood pressure was found in men. Multiple regression analysis revealed an association between PAI-1 genotype and plasma PAI-1 levels (P = 0.048). CONCLUSIONS Our findings show a gender-specific association of the PAI-1 4G/5G polymorphism with central arterial blood pressure. The genotype effect was independent of other risk factors related to hypertension, suggesting that impaired fibrinolytic potential may play an important role in the development of central hypertension in women.

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  • 46.
    Björck, Hanna
    et al.
    Linköping University, Department of Medical and Health Sciences, Physiology. Linköping University, Faculty of Health Sciences.
    Länne, Toste
    Linköping University, Department of Medical and Health Sciences, Physiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Thoracic and Vascular Surgery.
    Alehagen, Urban
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Persson, Karin
    Linköping University, Department of Medical and Health Sciences, Pharmacology. Linköping University, Faculty of Health Sciences.
    Rundkvist, Louise
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences.
    Hamsten, A
    Karolinska Institute.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Cardiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Eriksson, P
    Karolinska Institute, Stockholm.
    Association of genetic variation on chromosome 9p21.3 and arterial stiffness2009In: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 265, no 3, p. 373-381Article in journal (Refereed)
    Abstract [en]

    Genome wide association studies have consistently reported associations between a region on chromosome 9p21.3 and a broad range of vascular diseases, such as coronary artery disease (CAD), aortic and intracranial aneurysms and type-2 diabetes (T2D). However, clear associations with intermediate phenotypes have not been described so far. To shed light on a possible influence of this chromosomal region on arterial wall integrity, we analysed associations between single nucleotide polymorphisms (SNPs) and degree of stiffness of the abdominal aorta in elderly individuals.

    A total of 400 subjects, 212 men and 188 women, aged 70-88 years were included. Arterial stiffness was examined at the midpoint between the renal arteries and the aortic bifurcation. Two CAD- and aneurysm-associated SNPs (rs10757274 and rs2891168) and one T2D-associated SNP (rs1081161) within the 9p21.3 region were genotyped. Aortic compliance and distensibility coefficients were higher in carriers of the rs10757274G and rs2891168G alleles in men reflecting a decrease in aortic stiffness. Adjustment for age and mean arterial pressure had no effect on these associations. The two SNPs were not associated with intima-media thickness or lumen diameter of the abdominal aorta. There were no associations between the rs10811661 SNP and any measure of aortic stiffness.

    Impaired mechanical properties of the arterial wall may explain the association between chromosome 9p21.3 polymorphisms and vascular disease.

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  • 47.
    Bonapace, Stefano
    et al.
    Osped Sacro Cuore Don Calabria, Italy.
    Rossi, Andrea
    Univ Verona, Italy.
    Laroche, Cecile
    European Soc Cardiol, France.
    Crespo-Leiro, Maria G.
    Complexo Hosp Univ A Coruna, Spain; Inst Invest Biomed, Spain; Univ A Coruna, Spain; Ctr Invest Red Enfermedades Cardiovasc, Spain.
    Piepoli, Massimo F.
    AUSL Piacenza, Italy.
    Coats, Andrew J. S.
    San Raffaele Pisana Sci Inst, Italy.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Malek, Filip
    Na Homolce Hosp Cardiovasc Ctr, Czech Republic.
    Macarie, Cezar
    Inst Urgenta Pentru Boli Cardiovasc CC Iliescu, Romania.
    Temporelli, Pier Luigi
    Ist Ricovero and Cura Carattere Sci, Italy.
    Maggioni, Aldo P.
    European Soc Cardiol, France; ANMCO Res Ctr, Italy.
    Tavazzi, Luigi
    GVM CareandRes, Italy.
    Brachial pulse pressure in acute heart failure. Results of the Heart Failure Registry2019In: ESC Heart Failure, E-ISSN 2055-5822, Vol. 6, no 6, p. 1167-1177Article in journal (Refereed)
    Abstract [en]

    Aims To investigate the still uncertain independent prognostic impact of pulse pressure (PP) in acute heart failure (HF), in particular across the left ventricular ejection fraction (EF) phenotypes, and the potential contribution of PP in outlining the individual phenotypes. Methods and results We prospectively evaluated 1-year death and rehospitalization in 4314 patients admitted for acute HF grouped by EF and stratified by their PP level on admission. In HF with reduced (amp;lt; 40%) EF (HFrEF), the highest quartiles of PP had the lowest unadjusted [hazard ratio (HR) 0.77, 95% confidence interval (CI) 0.61-0.98] and adjusted (HR 0.64 0.50-0.82) risk of 1 year all cause death compared to the lowest quartile. Its prognostic impact was partially mediated by systolic blood pressure (SBP). In HF with preserved (amp;gt;= 50%) EF (HFpEF), the intermediate quartile of PP showed the lowest 1 year all cause mortality in unadjusted (HR 0.598, CI 0.416-0.858) and adjusted (HR 0.55, 95% CI 0.388-0.801) models with no relationship with SBP. In a receiver operating characteristic analysis, a combination of PP amp;gt; 60 mmHg and SBP amp;gt; 140 mmHg was associated to a preserved EF with a high performance value. No prognostic significance of PP was found in the HF with mid-range EF subgroup. Conclusions In acute HFrEF, there is an almost linear inverse relation between mortality and PP, partly mediated by SBP. In HFpEF, a J-shaped relationship between mortality and PP was present with a better prognosis at the nadir. A combination of PP amp;gt; 60 mmHg with SBP amp;gt; 140 mmHg may be clinically helpful as marker of a preserved left ventricular EF.

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  • 48.
    Braunschweig, Frieder
    et al.
    Karolinska Institutet, Stockholm, Karolinska University Hospital, Stockholm.
    Linde, Cecilia
    Karolinska Institutet, Stockholm, Karolinska University Hospital, Stockholm.
    Benson, Lina
    Karolinska Institutet, Department of Clinical Science and Education, South Hospital, Stockholm, Sweden.
    Ståhlberg, Marcus
    Karolinska Institutet, Stockholm, Karolinska University Hospital, Stockholm.
    Dahlström, Ulf
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    Lund, Lars H
    Karolinska Institutet, Stockholm, Karolinska University Hospital, Stockholm.
    New York Heart Association functional class, QRS duration, and survival in heart failure with reduced ejection fraction: implications for cardiac resychronization therapy.2017In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 19, no 3, p. 366-376Article in journal (Refereed)
    Abstract [en]

    AIMS: Symptom severity assessed by NYHA functional class and QRS duration are essential criteria for selection of heart failure (HF) patients for CRT. This study assessed the relationship between NYHA class, QRS duration, and survival in a nationwide HF registry.

    METHODS AND RESULTS: We studied 13 423 patients with HF in NYHA class II-IV and LVEF <40% in the Swedish Heart Failure Registry. Survival was followed via the Swedish Population Registry. Of 12 534 patients without CRT (age 71 ± 12 years, 29% women), 51% and 49% were in NYHA class II and III-IV, respectively. Patients in NYHA class II compared with class III-IV were younger (69 vs. 73 years), and had a better systolic function (49% vs. 58% with LVEF <30%), P <0.001 for all, and a favourable co-morbidity profile. QRS duration was 116 ± 29 ms in NYHA class II and 119 ± 29 ms in NYHA class III-IV with QRS ≥120 ms found in 37% vs. 44%, and an LBBB in 23% vs. 28% (P < 0.001 for all). Upon multivariable Cox regression adjusting for 40 clinically relevant variables, mortality risk was higher in NYHA class III-IV vs. class II, with a hazard ratio (HR) of 1.31, 95% confidence interval (CI) 1.23-1.40. Mortality was also higher with QRS prolongation ≥120 ms vs. narrow QRS. The HR in NYHA class II patients with non-LBBB was 1.19 (95% CI 1.05 - 1.36) and in those with LBBB it was 1.16 (95% CI 1.03-1.41). The corresponding HRs in NYHA class III-IV were 1.33 (95% CI 1.21-1.47) and 1.12 (95% CI 1.02-1.22). There was no significant interaction between the effects of NYHA class and QRS duration or morphology on mortality. Applying different scenarios to estimate guideline adherence, fewer patients with NYHA class II (range 14.4-42.6%) compared with NYHA class III-IV (18.0-45.4%) had received a CRT device when indicated.

    CONCLUSIONS: In HF with reduced LVEF, QRS prolongation is common and independently linked to worse survival. The increase in mortality risk associated with QRS prolongation of both LBBB and non-LBBB morphology is similar in NYHA class II and III-IV.

  • 49.
    Broström, Anders
    et al.
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Hübbert, Laila
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Jakobsson, Per
    Linköping University, Department of Medicine and Care, Pulmonary Medicine. Linköping University, Faculty of Health Sciences.
    Johansson, Peter
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Fridlund, Bengt
    Department of Nursing, Lund University, Lund, Sweden and School of Social and Health Sciences, Halmstad University, Halmstad, Sweden.
    Dahlström, Ulf
    Linköping University, Department of Medicine and Care, Cardiology. Linköping University, Faculty of Health Sciences.
    Effects of long-term nocturnal oxygen treatment in patients with severe heart failure2005In: Journal of Cardiovascular Nursing, ISSN 0889-4655, E-ISSN 1550-5049, Vol. 20, no 6, p. 385-396Article in journal (Refereed)
    Abstract [en]

    Sleep-disordered breathing (SDB) is common in patients with heart failure (HF) and leads to disturbed sleep. The objective of this study was to determine the persistent effects of long-term nocturnal oxygen treatment in patients with severe HF regarding (1) objective outcomes, such as sleep, SDB, cardiac function, and functional capacity; (2) subjective outcomes, such as self-assessed sleep difficulties, daytime sleepiness, and health-related quality of life (HRQOL); and (3) the relationship between objective and subjective outcomes. In this open nonrandomized experimental study, 22 patients, median age 71 years, with severe HF were studied before and after 3 months of receiving nocturnal oxygen. The measures used were overnight polysomnography, echocardiography, 6-minute walk test, self-assessed sleep difficulties (Uppsala Sleep Inventory-HF), daytime sleepiness (Epworth Sleepiness Scale), and HRQOL (36-Item Short Form Health Survey and Minnesota Living with Heart Failure Questionnaire). SDB, with a 90% dominance of central sleep apnea, occurred in 41% of the patients with severe HF before intervention. After intervention, functional capacity improved for both the whole group of patients with HF (P < .01) and HF patients with SDB (P < .05). No improvements regarding cardiac function, objective sleep, subjective sleep, or SDB were seen, except for a decrease of > or = 4% desaturations (P < .05). HRQOL did not differ significantly between HF patients with and without SDB before or after intervention with nocturnal oxygen. Long-term nocturnal oxygen treatment improved functional capacity in patients with severe HF, with or without SDB. No improvements were seen regarding sleep, daytime sleepiness, SDB, cardiac function, or HRQOL.

  • 50.
    Broström, Anders
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Clinical Neurophysiology.
    Johansson, Peter
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Kihl, J
    Forslund, P
    Dahlström, Ulf
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Cardiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Svanborg, Eva
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Clinical Neurophysiology. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurophysiology UHL.
    Fridlund, B G
    Depressive symptoms in patients with chronic heart failure - effects on insomnia, daytime sleepiness and health-related quality of life2006In: World Congress of Cardiology,2006, 2006, p. 224-224Conference paper (Other academic)
1234567 1 - 50 of 305
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