Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Heart Failure
Effects of Atrial Fibrillation on Long-Term Outcomes in Patients Hospitalized for Heart Failure in Japan
A Report From the Japanese Cardiac Registry of Heart Failure in Cardiology (JCARE-CARD)
Sanae HamaguchiHisashi YokoshikiShintaro KinugawaMiyuki Tsuchihashi-MakayaTakashi YokotaAkira TakeshitaHiroyuki TsutsuiThe JCARE-CARD Investigators
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2009 Volume 73 Issue 11 Pages 2084-2090

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Abstract

Background: Atrial fibrillation (AF) is a common arrhythmia in patients with heart failure (HF), but its prognostic importance is controversial. The effect of AF on long-term outcomes, including mortality and rehospitalization, among unselected HF patients hospitalized with HF in routine clinical practice in Japan was assessed in the present study. Methods and Results: The Japanese Cardiac Registry of Heart Failure in Cardiology (JCARE-CARD) prospectively studied the characteristics and treatment strategies of a broad sample of patients hospitalized with worsening HF and the outcomes were followed with an average of 2.4 years of follow-up. The study cohort (n=2,659) was grouped according to the presence (n=937; 35.2%) or absence (n=1,722; 64.8%) of AF at baseline. After multivariable adjustment, patients with and without AF had a comparable risk for all-cause death (adjusted hazard ratio (HR) 0.931, 95% confidence interval (CI) 0.690-1.258, P=0.643), cardiac death (adjusted HR 0.949, 95%CI 0.655-1.377, P=0.784), rehospitalization because of the worsening HF (adjusted HR 1.028, 95%CI 0.816-1.295, P=0.816), and all-cause death or rehospitalization (adjusted HR 1.039, 95%CI 0.842-1.281, P=0.722). Conclusions: Among patients hospitalized for HF in Japan, AF was common, but was not an independent risk for long-term adverse outcomes, including death or rehospitalization, in routine clinical practice. (Circ J 2009; 73: 2084-2090)

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© 2009 THE JAPANESE CIRCULATION SOCIETY
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