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心性猝死大多由心脏病特别是冠心病所引起。冠心病患者中因急性心肌梗塞后在出院的第一年内就有10～20％死亡,其中近半数为猝死。因此,讨论梗塞后心性猝死的病理生理机制,确定可能诱发心性猝死的危险因素,对于梗塞后心性猝死的防治有重要意义。一、心性猝死的病理生理机制 1.心肌梗塞和缺血的作用 (1)急性心肌梗塞及其机械并发症:据报告在猝死者的尸检中约5～40％有急性心肌梗塞的证据,实际上的发生率可能还要
Most sudden cardiac death is caused by heart disease, especially coronary heart disease. Coronary heart disease in patients with acute myocardial infarction in the first year after discharge from 10 to 20% of deaths, of which nearly half of sudden death. Therefore, discussing the pathophysiological mechanism of sudden cardiac death after infarction and determining the risk factors that may induce sudden cardiac death are of great significance for the prevention and treatment of sudden cardiac death after infarction. First, the pathophysiological mechanism of sudden cardiac death 1. The role of myocardial infarction and ischemia (1) acute myocardial infarction and its mechanical complications: According to the report of autopsy in the sudden death of about 5 to 40% of patients with evidence of acute myocardial infarction, the actual The incidence may be even higher