TY - JOUR
T1 - β-Blockers in Atrial Fibrillation Patients With or Without Heart Failure
T2 - Association With Mortality in a Nationwide Cohort Study
AU - Nielsen, Peter Brønnum
AU - Larsen, Torben Bjerregaard
AU - Gorst-Rasmussen, Anders
AU - Skjøth, Flemming
AU - Lip, Gregory Y H
N1 - © 2016 American Heart Association, Inc.
PY - 2016
Y1 - 2016
N2 - BACKGROUND: Recent data suggest that β-blockers are associated with prognostic advantages in heart failure (HF) patients without concomitant atrial fibrillation (AF), but not in HF patients with concomitant AF. We aimed to investigate associations between β-blocker treatment and cardiovascular outcome and mortality in AF patients with and without HF.METHODS AND RESULTS: Three nationwide registries were used to identify patients with nonvalvular AF patients with or without concomitant HF. Patients were stratified into β-blocker users and β-blocker nonusers, and according to the presence of a HF diagnosis. We followed the patients ≤5 years after baseline. Six different cardiovascular outcomes were investigated, including all-cause mortality and fatal thromboembolic events. Crude event rates were ascertained and propensity-matched Cox regression was used to compare event rates according to β-blocker usage status. A total of 205 174 patients were included, where 39 741 patients had prevalent HF. In the latter subgroup of patients, the 1-year propensity-matched hazard ratio (HR) for all-cause mortality was 0.75 (95% confidence interval, 0.71-0.79; nontreated used as reference). For patients without concomitant HF, the propensity-matched HR for all-cause mortality was 0.78 (95% confidence interval, 0.71-0.76).CONCLUSIONS: In this large nationwide cohort study, evidence of a lower mortality with β-blocker therapy in AF patients with concomitant HF was observed. In addition, this association was accompanied with indications that β-blocker treatment is also associated with a better prognosis in AF patients without concomitant HF.
AB - BACKGROUND: Recent data suggest that β-blockers are associated with prognostic advantages in heart failure (HF) patients without concomitant atrial fibrillation (AF), but not in HF patients with concomitant AF. We aimed to investigate associations between β-blocker treatment and cardiovascular outcome and mortality in AF patients with and without HF.METHODS AND RESULTS: Three nationwide registries were used to identify patients with nonvalvular AF patients with or without concomitant HF. Patients were stratified into β-blocker users and β-blocker nonusers, and according to the presence of a HF diagnosis. We followed the patients ≤5 years after baseline. Six different cardiovascular outcomes were investigated, including all-cause mortality and fatal thromboembolic events. Crude event rates were ascertained and propensity-matched Cox regression was used to compare event rates according to β-blocker usage status. A total of 205 174 patients were included, where 39 741 patients had prevalent HF. In the latter subgroup of patients, the 1-year propensity-matched hazard ratio (HR) for all-cause mortality was 0.75 (95% confidence interval, 0.71-0.79; nontreated used as reference). For patients without concomitant HF, the propensity-matched HR for all-cause mortality was 0.78 (95% confidence interval, 0.71-0.76).CONCLUSIONS: In this large nationwide cohort study, evidence of a lower mortality with β-blocker therapy in AF patients with concomitant HF was observed. In addition, this association was accompanied with indications that β-blocker treatment is also associated with a better prognosis in AF patients without concomitant HF.
U2 - 10.1161/CIRCHEARTFAILURE.115.002597
DO - 10.1161/CIRCHEARTFAILURE.115.002597
M3 - Journal article
C2 - 26823497
SN - 1941-3289
VL - 9
JO - Circulation: Heart Failure
JF - Circulation: Heart Failure
IS - 2
M1 - e002597
ER -