急性心肌梗死 (ＡＭＩ)诊断并不难 ,但以消化道症状 ,意识障碍等为首发症状者极易误诊 ,而延误了治疗 ,现就院外误诊收治我院的 5例分析如下。例 1　女 ,76岁。持续心悸、乏力2ｄ ,加重 5ｈ入院 ,有慢支史 ,外院曾按支气管炎静滴青霉素 ,氨茶碱等无效 ,查体 :血压 5 0 3 0ｍｍ Acute myocardial infarction (AMI) diagnosis is not difficult, but the digestive tract symptoms, disturbance of consciousness as the first symptom is extremely easy to misdiagnosis, and delayed treatment, now on hospital misdiagnosed in our hospital 5 cases are analyzed as follows. Example 1 Female, 76 years old. Sustained heart palpitations, fatigue 2d, increased 5h admission, history of chronic bronchitis, bronchitis, intravenous penicillin, aminophylline and other invalid, physical examination: blood pressure 5 0 3 0mm