许多心肌梗塞后病人左室功能有自发性改善,本文旨在进一步证实梗塞后这种自发性变化,并判断梗塞症状发生后短期内造影所示的冠脉解剖能否预测这些变化。方法:40例急性心肌梗塞病人在症状发作后平均4小时20分作冠脉造影,其中包括链激酶治疗后无再灌注8例及未经链激酶治疗的32例。在冠脉造影后2小时内和梗塞后平均13.2天分别作静息时核素心室造影,通过左前斜位测定左室喷血分数,其变化大于5％时才有意义。此外,测总CK水平,计 Many patients with myocardial infarction have a spontaneous improvement in left ventricular function. This article aims to further confirm this spontaneous change after infarction and to determine whether short-term coronary angiography predicts these changes after infarction. METHODS: Forty patients with acute myocardial infarction underwent coronary angiography at an average of 4 hours and 20 minutes after the onset of symptoms, including 8 without reperfusion after streptokinase and 32 without streptokinase. Radionuclide ventriculography at rest within 2 hours after coronary angiography and an average of 13.2 days after infarction were used to measure left ventricular ejection fraction by left anterior oblique. The changes were more than 5%. In addition, the total test CK level, total