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European Journal of Heart Failure 2008 10(6):566-572; doi:10.1016/j.ejheart.2008.04.002
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© 2008 European Society of Cardiology

Effect of atrial fibrillation on long-term survival in patients hospitalised for heart failure with preserved ejection fraction

Dan Rusinaru, Laurent Leborgne, Marcel Peltier and Christophe Tribouilloy*

INSERM, ERI 12, Amiens, France and University Hospital Amiens France Department of Cardiology Avenue René Laënnec, 80054 Amiens Cedex 1, France

* Corresponding author. Tel.: +33 3 22 45 58 83; fax: +33 3 22 45 56 58. E-mail address: tribouilloy.christophe{at}chu-amiens.fr


  Abstract

Background: The prognostic importance of atrial fibrillation (AF) in heart failure (HF) is not clearly established. Studies conducted in systolic HF have led to discordant results.

Aims: To evaluate the relation between AF and long-term survival in patients with heart failure and preserved ejection fraction (HFPEF).

Methods and results: We prospectively included 368 consecutive patients hospitalised for a first episode of HFPEF during 2000 and compared the 5-year outcome of patients according to the presence or absence of AF on the baseline electrocardiogram. Propensity scores were used to reduce imbalance in baseline characteristics. Baseline AF was observed in 36% (n=132) of the study population. Patients with AF were older and more often had hypertensive heart disease. On univariate analysis, baseline AF was associated with an increased risk of 5-year overall mortality (HR=1.36; 95%CI 1.03–1.79; p=0.03). After adjustment for covariates, baseline AF was no longer a predictor of reduced survival. The risk of adjusted cardiovascular death in patients with and without AF was comparable. In the propensity-matched patients, AF was not related to a poorer outcome (HR=1.08; 95%CI 0.78–1.51; p=0.63).

Conclusion: In patients hospitalised for HFPEF, AF is frequent and associated with an excess mortality mainly related to the advanced age of these patients. After adjustment for covariates, baseline AF is not an independent predictor of long-term mortality.

Key Words: Heart failure • Atrial fibrillation • Ejection fraction • Prognosis

Received December 7, 2007; Revised March 10, 2008; Accepted April 7, 2008


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