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目的评价动态心电图对无症状心肌缺血(SMI)的临床特点及发作情况。方法应用十二导联动态心电分析系统监测89例冠心病患者发生缺血性ST段下移情况。结果 89例中,有缺血性ST-T改变72例,占总数的80%。72例中共检出246阵次缺血发作,其中212阵次为无痛性心肌缺血。结论无症状心肌缺血与心肌耗氧量的增加有关,对无症状心肌缺血患者,做到早期发现、早期治疗,有效地防止冠心病意外的发生。
Objective To evaluate the clinical features and seizures of dynamic electrocardiogram (ECG) on asymptomatic myocardial ischemia (SMI). Methods The 12-lead Holter system was used to monitor the progression of ischemic ST segment in 89 patients with coronary heart disease. Results Among the 89 cases, there were 72 cases of ischemic ST-T changes, accounting for 80% of the total. A total of 246 ischemic attacks were detected in 72 cases, of which 212 were painless myocardial ischemia. Conclusions Asymptomatic myocardial ischemia is associated with an increase in myocardial oxygen consumption. Early detection and early treatment of asymptomatic myocardial ischemia are effective in preventing the occurrence of coronary heart disease.