我院1970～1985年期间收治典型急性心肌梗塞(AMI276例,本文试从常规心电图梗塞区对应导联上S-T段的变化来探讨其临床意义。临床资科一、一般资料276例中,男性192例,女性84例,男女之比为2.2:1,年龄43～84岁,平均64.2岁。24小时之内入院者206例,占74.6%。二、S-T段改变前壁、前间壁,广泛性前壁的AMI的对应导联是指Ⅱ、Ⅲ、aVF导联上的S-T段变化;下壁AMI的对应导联是指V_(2-6)。导联上的S-T段变化。测量2或2个以上导联并求其平均值。三、根据S-T段变化程度,将276例AMI患者分为3组,Ⅰ:组对应导联上S-T段下降≥2mm,61例;Ⅱ组:对应导联上S-T段无改变,120例;Ⅲ组:对应导联上S-T段下降<2mm,95例(详 Our hospital from 1970 to 1985 admitted to a typical acute myocardial infarction (AMI276 cases, this article from the conventional electrocardiogram infarction corresponding lead on the ST segment changes to explore its clinical significance.Clinical information First, the general information 276 cases, male 192 Cases, female 84 cases, the ratio of male to female 2.2: 1, aged 43 to 84 years old, average 64.2 years .24 cases admitted within 206 cases, accounting for 74.6% .Second, ST segment changes in anterior wall, anterior wall, The corresponding leads of AMI in the anterior wall are the changes of ST segment in leads II, III and aVF, and the corresponding leads in inferior AMI refer to the changes of ST in V 2-6 lead. More than two leads and find the average of them.According to the degree of ST segment changes, 276 patients with AMI were divided into 3 groups, Ⅰ: group corresponding to the lead on the ST segment decreased ≥ 2mm, 61 cases; Ⅱ group: Corresponding guide There was no change in ST segment in 120 cases. In group Ⅲ, ST segment depression was less than 2 mm (95%) in corresponding leads