报道采用24小时动态心电图(DCG)监测84例冠心病患者与50例无冠心病者,发现冠心病中有42例(50%)有缺血型ST 段改变;总计发作281阵,其中无症状性262阵(93.2%)。发作时与发作前心率比较无明显差异。比较无症状性与有症状性心肌缺血时活动记分及ST 段改变程度无明显差异。在无症状性心肌缺血,总缺血时间上午长于下午。无冠心病者DCG 中均无缺血型ST 段改变。 Reported using 24-hour ambulatory electrocardiogram (DCG) monitoring of 84 patients with coronary heart disease and 50 patients without coronary heart disease, coronary heart disease found in 42 patients (50%) ischemic ST segment changes; a total of 281 episodes, of which asymptomatic Sex 262 array (93.2%). There was no significant difference between the attack and the pre-attack heart rate. There was no significant difference in activity score and ST segment between asymptomatic and symptomatic patients with myocardial ischemia. In asymptomatic myocardial ischemia, the total ischemic time is longer in the morning than in the afternoon. There was no ischemic ST segment change in DCG without coronary heart disease.