急性心肌梗死是心血管系统的一种急症,抢救成功与否,往往取决于早期正确的诊断及治疗。对有典型症状及心电图表现者,诊断并不困难,但有些心肌梗死临床症状往往不典型,并且差别较大,尤其是老年人非致命性心肌梗死约有1/4不被病人发现,误诊、漏诊率较高。有典型胸痛症状者仅占20% Acute myocardial infarction is an emergency cardiovascular system, the success of the rescue, often depends on early correct diagnosis and treatment. Of typical symptoms and ECG performance, the diagnosis is not difficult, but some clinical symptoms of myocardial infarction are often not typical, and the difference is large, especially in the elderly about a quarter of non-fatal myocardial infarction was not found, misdiagnosed, Misdiagnosis rate higher. Patients with typical symptoms of chest pain only 20%