急性心肌梗塞(AMI)发病急,病情重,部分病人在急性期可发生心律失常、心力衰竭、心原性休克等严重并发症,早期病死率很高。典型AMI病人诊断不难。但约1/4病例临床表现不典型,故在急诊过程中,凡年龄在40岁以上,有以下表现之一者,应考虑到AMI Acute myocardial infarction (AMI) the incidence of acute and severe illness, some patients may occur in acute acute arrhythmia, heart failure, cardiogenic shock and other serious complications, high early mortality. A typical diagnosis of AMI patients is not difficult. However, about 1/4 cases of clinical manifestations of atypical, so in the emergency process, where the age of 40 years of age, one of the following manifestations should take into account the AMI