F Wave Amplitude as a Predictor of Thromboembolism and Success of Electrical Cardioversion in Patients with Persistent Atrial Fibrillation

Abstract Background Atrial fibrillation (AF) is classified according to the amplitude of fibrillatory waves (f) into fine waves (fAF) and coarse waves (cAF). Objectives To correlate the amplitude of f waves with clinical, laboratory, electrocardiographic, and echocardiographic variables that indicate a high risk of thromboembolism and to assess their impact on the success of electrical cardioversion (ECV). Methods Retrospective, observational study that included 57 patients with persistent non-valvular AF who underwent ECV. The maximum amplitude of f waves was measured in lead V1. cAF was defined when f ≥ 1.0mm and fAF when f摘要 背景 心房颤动（Atrial fibrillation, AF）可根据颤动波（fibrillatory waves, f波）的振幅分为细颤波型心房颤动（fine waves AF, fAF）与粗颤波型心房颤动（coarse waves AF, cAF）。 研究目的 探讨f波振幅与提示血栓栓塞高风险的临床、实验室、心电图及超声心动图变量之间的相关性，并评估其对电复律（electrical cardioversion, ECV）成功率的影响。 研究方法 本研究为回顾性观察性研究，纳入57例接受电复律（electrical cardioversion, ECV）的持续性非瓣膜性房颤患者。于V1导联测量f波的最大振幅，当f≥1.0mm时定义为粗颤波型心房颤动，fAF的判定标准原文未完整表述。