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住院急性心肌梗塞(AMI)患者41例,男36例,女5例,平均年龄58(28～74)岁。包括前壁梗塞21例,下后壁梗塞20例,均于AMI发病后3～4周内以分级递增方式行食管心房起搏心脏负荷试验。检查前1周内无心功能不全、心绞痛发作及心律失常发生。阳性标准:①停止起搏后ST段呈缺血性压低≥1mm或ST段抬高>1mm,持续2min以上;②出现心绞痛发作;③发生心律失常:室性早搏
There were 41 hospitalized patients with acute myocardial infarction (AMI), 36 males and 5 females, with an average age of 58 (28-74) years. Including 21 cases of anterior wall infarction and 20 cases of inferior posterior wall infarction. They all underwent esophageal atrial pacing and heart stress test within 3 to 4 weeks after onset of AMI. 1 week before the examination without heart failure, angina pectoris and arrhythmia. Positive standards: ① stop pacing after ST segment was ischemic depression ≥ 1mm or ST elevation> 1mm, sustained 2min or more; ② angina pectoris occurred; ③ arrhythmia: ventricular premature beats