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本文对54例心电图正常,且排除瓣膜病、先心病、肺心病、高血压及心肌病(炎)的中年人(年龄39-59岁),进行Holter24小时连续监测;同时选38例无心肺疾病年青患者作对照,发现对照组无一例ST段下降≥1mm。54例心电图正常心肌缺血的患者中,分为有症状组(30例)和无症状组(24例)。Holter的监测显示缺血型ST段压低1-2mm者,有症状组30例(88.2％),无症状组15例(75％);缺血型ST段压低3-4mm者,两组分别为4例(11.7％)和5例(25％);发生缺血的次数,有症状组平均为14.77次,无症状组平均13.17次;发生缺血总时间,两组分别平均为69.7min和95.1min。
In this paper, 54 cases of middle-aged people (39-59 years old) with normal electrocardiogram and valvular disease, congenital heart disease, cor pulmonale, hypertension and cardiomyopathy (inflammation) were enrolled in Holter for 24 hours continuous monitoring. Young patients with disease as a control and found no case of control group ST segment decreased ≥ 1mm. 54 patients with normal electrocardiogram myocardial ischemia, divided into symptomatic group (30 cases) and asymptomatic group (24 cases). Holter monitoring showed that the ischemic ST-segment depression was 1-2mm in 30 patients (88.2%) with symptoms and 15 (75%) in asymptomatic patients. The ischemic ST-segment depression was 3-4mm in both groups 4 cases (11.7%) and 5 cases (25%). The number of ischemic episodes was 14.77 times in symptomatic group and 13.17 times in asymptomatic group. The total duration of ischemia was 69.7min and 95.1 min.