本文对36例原发性扩张型心肌病患者心电图进行了分析。本组除一例外均有心电图异常改变(97％),其主要分类为:①异位搏动和室上性、室性心动过速;②房室扩大;③QRS低电压,异常Q波,原发性ST—T改变;④传导障碍。以左室肥厚(50％)和异位搏动及异位节律(50％)为最常见。对异常Q波的形成及与心肌梗塞的鉴别作了讨论。 In this paper, 36 patients with primary dilated cardiomyopathy were analyzed. With exception of this group have abnormal ECG changes (97%), the main classification as follows: ectopic and supraventricular tachycardia, ventricular tachycardia; atrioventricular enlargement; QRS low voltage, abnormal Q wave, primary ST-T changes; ④ conduction disorders. Left ventricular hypertrophy (50%) and ectopic beats and ectopic rhythm (50%) for the most common. The formation of abnormal Q waves and the identification of myocardial infarction were discussed.