随着心电图学的日益进展,目前心电图检查已成为临床心脏病诊断方法中一项有价值的常规技术。对心肌梗塞和心律失常的诊断,更具有简便、迅速、准确和实用等优点。心律失常是缺血性心脏病最常见的并发症之一,也是引起猝死的主要原因。近来已发现急性心肌梗塞时出现的室性心律失常有早晚期之分,从冠状动脉闭塞后开始的30分钟内出现的室性心律失常为早期室性心律失常。30分钟以后至4小时间一般不出 With the progress of the electrocardiogram, the current electrocardiogram examination has become a valuable routine technique in the clinical diagnosis of heart disease. The diagnosis of myocardial infarction and arrhythmia, more simple, rapid, accurate and practical advantages. Arrhythmia is one of the most common complications of ischemic heart disease, is also the main cause of sudden death. It has been recently found that acute myocardial infarction occurs in ventricular arrhythmias early and late points, starting within 30 minutes after the onset of coronary ventricular arrhythmias appear early ventricular arrhythmias. After 30 minutes to 4 hours generally not out