急性心肌梗塞(AMI)是常见心血管疾病急症,急性期病死率较高,约40%的病人在住院前死亡。发病一周内死亡者占死亡总数约90%,尤其在发病后24小时容易出现心律失常而猝死,约占死亡人数的1/3。所以早期诊断、及时处理是减少病死率的重要措施。AMI表现有典型临床症状和心电图(EKG)者,仅占AMI患 Acute myocardial infarction (AMI) is a common acute cardiovascular disease with a high mortality rate in the acute phase. About 40% of patients die before hospitalization. Death within one week of onset accounts for about 90% of the total deaths, especially in the 24 hours after the onset of arrhythmia prone to sudden death, accounting for about 1/3 of the death toll. Therefore, early diagnosis and prompt treatment are important measures to reduce mortality. AMI performance of typical clinical symptoms and ECG (EKG) were only AMI patients