本文旨在探讨46例冠心病患者474次缺血性ST段下移与其症状、活动的关系,以及昼夜分布规律。 1.资料分析:46例皆符合WHO冠心病诊断标准(1979年)。其中男37例,女9例;年龄39～78岁。采用美国产STAR动态心电监测系统,选用CM_1和CM_2导联。46例冠心病患者经24小时动态心电图监测,其发生缺血性ST段下移474次,缺血累计时间为 This article aims to investigate 46 cases of coronary heart disease in 474 patients with ischemic ST segment down its symptoms and activities, and the distribution of day and night. 1. Data Analysis: 46 cases are in line with the WHO diagnostic criteria for coronary heart disease (1979). Including 37 males and 9 females; aged 39 to 78 years. The United States made using STAR dynamic ECG monitoring system, the selection of CM_1 and CM_2 lead. 46 cases of coronary heart disease by 24-hour Holter monitoring, the occurrence of ischemic ST segment down 474 times, the cumulative time of ischemia was