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本文对120例冠心病病人的动态心电图结果进行分析。结果表明:无症状性心肌缺血(SMI)的发生率是症状性心肌缺血的4.1倍,其中夜间SMI占夜间心肌缺血发作总阵次的93.7％,白天SMI占白天心肌缺血总阵次的74.6％,提示心肌缺血的有无症状与痛觉的阈值有关。SMI的昼夜发作规律为:上午6～12时居多,占SMI总阵次的38.2％,凌晨0～6时最少,占11.9％。另外,夜间24阵次心肌缺血发作与夜间起床有关,提示夜间起床是心肌缺血发作的一个诱因。
In this paper, 120 cases of coronary heart disease in patients with dynamic electrocardiogram results were analyzed. The results showed that the incidence of asymptomatic myocardial ischemia (SMI) was 4.1 times that of symptomatic myocardial ischemia, with nighttime SMI accounting for 93.7% of the total number of nighttime myocardial ischemic attacks and daytime SMI accounting for daytime myocardial ischemic total array 74.6% times, suggesting that the symptoms of myocardial ischemia and pain threshold. The circadian rhythm of SMI was mostly in the morning of 6-12, occupying 38.2% of the total SMI array, the least was 0-6, accounting for 11.9%. In addition, 24 night myocardial ischemic attack and get up at night, suggesting that getting up at night is an incentive for myocardial ischemia.