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５２例急性心肌梗塞后２～１２周患者进行次极量蹬车心电图运动试验，心肌缺血发生率为４４．２％。与冠状动脉造影对比，多支病变者阳性率高于单支病变（Ｐ＜０．０１）；与运动２０１铊心肌显像对比，前者阳性率较低（Ｐ＜０．０１）；心电图运动试验中非梗塞区心肌缺血组阳性率高于梗塞周围缺血组（Ｐ＜０．０２５）；ＳＴ段抬高组左室射血分数低于ＳＴ段正常或压低组（Ｐ＜０．０１）。心电图运动试验对诊断梗塞后残余心肌缺血，特别是非梗塞区心肌缺血有一定价值，运动中ＳＴ段抬高可能预示较差的心功能。
52 cases of acute myocardial infarction 2 to 12 weeks after the second extreme electrocardiogram treadmill exercise test, the incidence of myocardial ischemia was 44.2%. Compared with coronary angiography, the positive rate of multi-vessel disease was higher than that of single vessel disease (P <0.01). Compared with exercise 201 thalium myocardial imaging, the positive rate of the former was lower (P <0.01) The positive rate of myocardial ischemia in infarction group was higher than that in ischemic infarction group (P <0.025). The ejection fraction of left ventricular ejection fraction in ST elevation group was lower than that in ST segment normal or depression group (P <0.01) . ECG exercise test for the diagnosis of residual myocardial ischemia after infarction, especially in non-infarcted area of myocardial ischemia have some value, exercise ST-segment elevation may indicate poor heart function.