急性心肌梗死(AMI)是临床常见心血管危重急症,急性期病死率较高,而早期诊断、及时处理是减少该病病死率的重要措施。AMI有典型临床症状和心电图改变者仅占AMI的70%～80%〔1〕,部分AMI缺乏典型的临床表现和特征,特别是老年人常并存多种慢性疾病,不典型AMI更为多见,易误诊和漏诊 Acute myocardial infarction (AMI) is a common clinical cardiovascular crisis, high mortality in acute phase, and early diagnosis and timely treatment is an important measure to reduce the mortality of the disease. AMI has typical clinical symptoms and ECG changes accounted for only 70% to 80% of AMI 〔1〕, some of the typical lack of AMI clinical manifestations and characteristics, especially in the elderly often coexist a variety of chronic diseases, atypical AMI is more common Misdiagnosis and missed diagnosis