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目的:探讨延迟经皮腔内冠状动脉成形术(PTCA)及支架植入术对急性心肌梗死(AMI)患者左室功能和预后的影响.方法:选择AMI3周~3个月内的21例患者行PTCA及支架植入术,设同期住院的30例心肌梗死患者做对照组,观察两组患者出院后3个月、6个月的超声心动图检查、活动平板运动试验、动态心电图检查结果及半年内的死亡、再梗死、接受外科搭桥手术情况.结果:介入治疗组3个月后左室重构改善,6个月时左室功能及运动耐量较对照组明显提高(P＜0.01),无死亡、再梗死和接受外科手术者;对照组再梗死、死亡及接受外科搭桥手术各1例.结论:延迟PTCA及支架植入术,能改善AMI患者的左室功能和预后,手术本身有较高的成功率.“,”Objective:To investigate the value of late percutaneous transluminal coronary an-gioplasty (PTCA) and stent implating (SI) in cases with acute myocandial infarction (AMI).Method:PTCA and SI were performed in 21 cases at 3 weeks~6 months after onset of AMI (op-ereted group). Another 3O AMl cases who were admitted at the same time were included as control(control group). They were observed by UCG,treadmill test and Holten mornitoring. Their eventswere compared. Result:In operated group,the left ventricular (LV) remodeling was improved after3 ~ 6 months. There were significant increase of LV function and exercise tolerance (P< O. O1 ).There was no death. In control group, 1 reinfarction, 1 death and 1 coronary artery bypass graftingwere observed. Couclusion:Late PTCA and SI may improve LV function and prognosis of AMI pa-tient. The successful rate of this operation is high.