急性心肌梗死(AMI)是在冠状动脉病变的基础上,发生冠状动脉血供急剧减少或中断,使相应心肌严重、持久性缺血而发生局部坏死的心脏急症[1]。AMI因梗死部位、大小、侧支循环及个体差异可有三分之一缺乏典型的持久性胸骨后疼痛、发热等症状,为无痛性AMI,早期识别、积极救治对降低其病死率、致残率,改善预后尤为重要。 Acute myocardial infarction (AMI) is a cardiopulmonary emergency that results in a sharp reduction or interruption of coronary blood supply on the basis of a coronary artery lesion, which results in severe myocardial infarction and permanent ischemia [1]. AMI due to infarct size, size, collateral circulation and individual differences may have one third of the typical lack of persistent persistent chest pain, fever and other symptoms, painless AMI, early identification, active treatment to reduce their mortality, caused by The residual rate, improve the prognosis is particularly important.