心房颤动(房颤)是临床上常见的一种心律失常,以快速紊乱的心房除极和不规则的心室率为特点。房颤时屡见宽大的QRS波,可能是室上性心室内差异传导(SVA)或是室性期外收缩(PVB),两者在房颤时比在窦性心律时更难鉴别,以往提出过许多体表心电图(ECG)的鉴别标准,但其应用价值和特异性尚待证实。作者在慢性房颤和频繁出现异常QRS波的病人中,用心内希氏束电图记录法,评 Atrial fibrillation (AF) is a clinically common type of arrhythmia characterized by rapidly disturbed atrial depolarization and irregular ventricular rate. Atrial fibrillation is often seen with broad QRS waves, which may be supraventricular differences in ventricular conduction (SVA) or ventricular contraction (PVB), both in the atrial fibrillation more difficult than in the sinus rhythm identification, in the past Many criteria for the identification of body surface electrocardiogram (ECG) have been proposed, but the value and specificity of the application have yet to be confirmed. The author of chronic atrial fibrillation and frequent abnormal QRS wave of patients, with heart Kesi’s electrogram recording