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评价运动试验中出现无痛性心肌缺血的病人是否会增加以后发生急性心肌梗塞或心性猝死的危险性,作者将424例这种病人作为第一组。第二组456例冠心病人在运动试验中有缺血性ST段压低和心绞痛发作。第三组1019人均无冠心病,作为对照组。7年内不发生急性心肌梗塞或心性猝死的可能性在第一组分别为80%和91%,第二组分别为82%和39%(两组比较无明显差异)。对照组病人与第一组或第二组比较分别为98%和99%,(P<0.001)、运动试验中诱发无症状或有
To assess whether patients with painless myocardial ischemia during exercise testing may increase the risk of subsequent acute myocardial infarction or sudden cardiac death, the authors enrolled 424 patients as the first group. The second group of 456 patients with coronary heart disease had ischemic ST-segment depression and angina pectoris in exercise tests. The third group of 1019 people without coronary heart disease, as a control group. The odds of not having an acute myocardial infarction or sudden cardiac death within 7 years were 80% and 91% in the first group and 82% and 39% in the second group, respectively (no significant difference between the two groups). Patients in the control group were 98% and 99%, respectively, compared with those in the first or second group (P <0.001), asymptomatic in the exercise test, or