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Association Between Use of beta-Blockers and Outcomes in Patients With Heart Failure and Preserved Ejection Fraction
Karolinska Institute, Sweden; Karolinska University Hospital, Sweden.
Soder Sjukhuset, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Cardiology in Linköping.ORCID iD: 0000-0001-6353-8041
Karolinska Institute, Sweden.
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2014 (English)In: Journal of the American Medical Association (JAMA), ISSN 0098-7484, E-ISSN 1538-3598, Vol. 312, no 19, 2008-2018 p.Article in journal (Refereed) Published
Abstract [en]

IMPORTANCE Heart failure with preserved ejection fraction (HFPEF) may be as common and may have similar mortality as heart failure with reduced ejection fraction (HFREF). beta-Blockers reduce mortality in HFREF but are inadequately studied in HFPEF. OBJECTIVE To test the hypothesis that beta-blockers are associated with reduced all-cause mortality in HFPEF. DESIGN Propensity score-matched cohort study using the Swedish Heart Failure Registry. Propensity scores for beta-blacker use were derived from 52 baseline clinical and socioeconomic variables. SETTING Nationwide registry of 67 hospitals with inpatient and outpatient units and 95 outpatient primary care clinics in Sweden with patients entered into the registry between July 1, 2005, and December 30, 2012, and followed up until December 31, 2012. PARTICIPANTS From a consecutive sample of 41 976 patients, 19 083 patients with HFPEF (mean [SD] age, 76 [12] years; 46% women). Of these, 8244 were matched 2:1 based on age and propensity score for beta-blocker use, yielding 5496 treated and 2748 untreated patients with HFPEF. Also we conducted a positive-control consistency analysis involving 22 893 patients with HFREF, of whom 6081 were matched yielding 4054 treated and 2027 untreated patients. EXPOSURES beta-Blockers prescribed at discharge from the hospital or during an outpatient visit, analyzed 2 ways: without consideration of crossover and per-protocol analysis with censoring at crossover, if applicable. MAIN OUTCOMES AND MEASURES The prespecified primary outcome was all-cause mortality and the secondary outcome was combined all-cause mortality or heart failure hospitalization. RESULTS Median follow-up in HFPEF was 755 days, overall; 709 days in the matched cohort; no patients were lost to follow-up. In the matched HFPEF cohort, 1-year survival was 80% vs 79% for treated vs untreated patients, and 5-year survival was 45% vs 42%, with 2279(41%) vs 1244(45%) total deaths and 177 vs 191 deaths per 1000 patient-years (hazard ratio [HR], 0.93; 95% Cl, 0.86-0.996; P =.04). beta-Blockers were not associated with reduced combined mortality or heart failure hospitalizations: 3368(61%) vs 1753(64%) total for first events, with 371 vs 378 first events per 1000 patient-years (HR, 0.98; 95% Cl, 0.92-1.04; P = .46). In the matched HFREF cohort, beta-blockers were associated with reduced mortality (HR, 0.89; 95% Cl, 0.82-0.97, P=.005) and also with reduced combined mortality or heart failure hospitalization (HR, 0.89; 95% Cl, 0.84-0.95; P =.001). CONCLUSIONS AND RELEVANCE In patients with HFPEF, use of beta-blockers was associated with lower all-cause mortality but not with combined all-cause mortality or heart failure hospitalization. beta-Blockers in HFPEF should be examined in a large randomized clinical trial.

Place, publisher, year, edition, pages
American Medical Association (AMA): JAMA , 2014. Vol. 312, no 19, 2008-2018 p.
National Category
Clinical Medicine
URN: urn:nbn:se:liu:diva-113010DOI: 10.1001/jama.2014.15241ISI: 000345450500015PubMedID: 25399276OAI: diva2:779015

Funding Agencies|Swedish National Board of Health and Welfare; Swedish Association of Local Authorities and Regions; Swedish Society of Cardiology; Swedish Heart-Lung Foundation; Swedish Research Council [2013-23897-104604-23]; Swedish Heart Lung Foundation [20080409, 20100419]; Sockholm County Council [20090556, 20110120]

Available from: 2015-01-12 Created: 2015-01-08 Last updated: 2015-01-12

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Dahlström, Ulf
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Division of Cardiovascular MedicineFaculty of Health SciencesDepartment of Cardiology in Linköping
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