<正>急性心肌梗死(acute myocardial infarction,AMI)是威胁中老年人身体健康的常见病、多发病。通过早期溶栓、经皮冠状动脉腔内成形术(percutaneous transluminal coronary angioplasty,PTCA)及冠状动脉旁路移植术(coronary artery bypass grafting,CABG),可使梗死相关冠状动脉再