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  • Title: Differential Prognostic Impact of Atrial Fibrillation in Hospitalized Heart Failure Patients With Preserved Ejection Fraction According to Coronary Artery Disease Status　- Report From the Japanese Nationwide Multicenter Registry.
    Author: Temma T, Nagai T, Watanabe M, Kamada R, Takahashi Y, Hagiwara H, Koya T, Nakao M, Omote K, Kamiya K, Iwano H, Yamamoto K, Yoshikawa T, Saito Y, Anzai T.
    Journal: Circ J; 2020 Feb 25; 84(3):397-403. PubMed ID: 32009066.
    Abstract:
    BACKGROUND: Atrial fibrillation (AF) is an important prognostic determinant in heart failure (HF) with preserved ejection fraction (HFpEF). However, it is unclear which HFpEF phenotypes are affected by AF in terms of long-term clinical outcomes because HFpEF is a heterogeneous syndrome with comorbidities such as coronary artery disease (CAD). In this study we determined the differential prognostic significance of AF in HFpEF patients according to CAD status. METHODS AND RESULTS: Data for 408 hospitalized HFpEF patients enrolled in the Japanese Heart Failure Syndrome with Preserved Ejection Fraction Nationwide Multicenter Registry were analyzed. Patients were divided into 4 groups according to the presence of AF and CAD. The primary outcome was the composite of all-cause death and HF rehospitalization. The incidence of adverse events was higher in the AF-non-CAD than non-AF-non-CAD group (P=0.004). On multivariable Cox regression analysis with prespecified confounders, AF-non-CAD was significantly associated with an increased risk of adverse events than non-AF-non-CAD (adjusted HR, 1.91; 95% CI: 1.02-3.92) regardless of the type of AF. In contrast, risk was comparable between the AF-CAD and non-AF-CAD groups (adjusted HR, 1.24; 95% CI: 0.64-2.47). CONCLUSIONS: In HFpEF patients without CAD, AF was independently related to adverse events, indicating that intensive management of AF would have more beneficial effects particularly in HFpEF patients without CAD.
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