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＜学術雑誌論文＞
Echocardiographic Structure and Function in Elderly Patients With Atrial Fibrillation in Japan: The ANAFIE Echocardiographic Substudy
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| 概要 | Background: Echocardiographic data on the cardiac structure and function in elderly patients with atrial fibrillation (AF) and heart failure (HF) are limited. This subcohort study of the ANAFIE Regist...ry analyzed echocardiographic parameters to identify cardiac structural and functional characteristics. Methods and Results: Of 32,726 subjects in the ANAFIE population, 1,494 (4.6%) were entered as the echocardiography subcohort. Half of the patients, including those with persistent and permanent AF, older age (≥80 years), and CHADS_2 score ≥2, had left atrial (LA) volume index ≥48 mL/㎡, indicating severe LA enlargement. LA enlargement significantly correlated with impaired LA reservoir function, regardless of age and CHADS_2 score. Types of AF and rhythm were strongly related to LA volume and reservoir function (P<0.0001). Moderate-to-severe mitral and tricuspid regurgitation were significantly more common, and the early diastolic mitral inflow velocity to mitral annulus velocity ratio was significantly higher among patients with than without HF history (all, P<0.0001). Conclusions: In this subcohort, LA enlargement correlated with impaired LA reservoir function. Elderly patients with non-valvular AF and a history of HF had LA enlargement and dysfunction, increased LV mass index, low LV ejection fraction, and high heart rate.続きを見る |
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| 登録日 | 2022.02.09 |
| 更新日 | 2022.10.25 |