急性心肌梗死是临床常见的危重症之一,早期开通梗死相关血管可以显著降低病死率。大量临床试验证实急诊冠状动脉介入治疗(PCI)能够大大降低急性心肌梗死(AMI)患者的长期病死率,已经成为首选的安全有效的再灌注治疗方法[1]。但是由于血管开通延迟或梗死范围过大,部分患者在介入 Acute myocardial infarction is one of the most common critically ill patients. The early opening of infarct-related blood vessels can significantly reduce the mortality rate. A large number of clinical trials confirm that emergency PCI can greatly reduce the long-term mortality of patients with acute myocardial infarction (AMI) and has become the first choice of safe and effective reperfusion therapy [1]. However, due to the delay in opening of blood vessels or infarct size is too large, some patients are involved