Clinical characteristics and cardiovascular outcomes in patients with atrial fibrillation receiving rhythm-control therapy: the Fushimi AF Registry

Heart and vessels(2018)

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摘要
Management of atrial fibrillation (AF) with current rhythm-control therapy has an uncertain impact on outcomes. Among 3731 patients in the Fushimi AF Registry, a community-based prospective survey of AF patients in Fushimi-ku, Kyoto, we investigated the characteristics and outcomes in 478 patients receiving rhythm-control therapy (anti-arrhythmic drug and/or catheter ablation) alone, with 1279 patients receiving rate-control therapy (beta-blockers, calcium channel blockers, and digoxin) alone serving as a reference. The Rhythm-control group, 26% of which had prior catheter ablation, was younger (70.5 ± 10.8 vs. 74.3 ± 10.4 years, P < 0.001) with lower CHA 2 DS 2 -VASc score (2.71 ± 1.63 vs. 3.64 ± 1.62, P < 0.001) and received oral anticoagulants less frequently than the Rate-control group. During the median follow-up of 1107 days, the incidence of the composite of cardiac death and heart failure (HF) hospitalization was lower with rhythm control (hazard ratio (HR) 0.24, 95% confidence interval (CI) 0.14–0.36; P < 0.001), whereas that of ischemic stroke/systemic embolism was not significantly different (HR 0.64, 95% CI 0.35–1.10; P = 0.12), when compared to rate control. Propensity score-matching analysis as well as multivariate analysis further supported the relation of Rhythm-control group to the lower incidence of the composite of cardiac death and HF hospitalization. Rhythm-control therapy by anti-arrhythmic drug and/or catheter ablation in the contemporary clinical practice was associated with the lower incidence of the composite of cardiac death and HF hospitalization, as compared with rate-control therapy in a Japanese AF cohort. However, given the fundamental differences in baseline clinical characteristics between the rhythm- and Rate-control groups, the results cannot be generalizable.
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关键词
Atrial fibrillation,Heart failure,Rhythm control,Community-based registry
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