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通常认为急性心肌梗塞(AMI),变异型心绞痛、休息心绞痛和运动试验中伴有胸痛的ST段抬高往往提示存在严重心肌缺血,但对动态心电图监测所呈现的无症状短暂ST段抬高的意义尚未清楚,尤其是AMI后的短暂ST段抬高及其与缺血的关系仍有争议。本文作者通过对203例AMI的研究,力图弄清短暂ST段抬高的发生率、特征及并发症。方法:203例AMI患者(男154,女49),均龄58岁,接受了动态ST段监测,其中前侧壁MI 93例(46%),下后壁MI 110例(54%);非Q波MI 47例(23%);接受溶栓治疗者36例(18%);再梗塞46例
ST-segment elevation associated with chest pain in acute myocardial infarction (AMI), variant angina, rest angina, and exercise testing is often suggestive of severe myocardial ischemia, but asymptomatic short ST-segment elevation in presence of ambulatory ECG monitoring The significance of this is unclear, especially the transient ST-segment elevation following AMI and its relationship to ischemia remains controversial. Through the study of 203 patients with AMI, the authors sought to understand the incidence of transient ST-segment elevation, features and complications. Methods: A total of 203 AMI patients (male 154, female 49) aged 58 years old undergoing dynamic ST-segment monitoring were enrolled. Among them, 93 (46%) were MI in the anterior wall and 110 Q wave MI 47 cases (23%); thrombolytic therapy in 36 patients (18%); re-infarction in 46 cases