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心脏性猝死指急性症状(长时间胸痛、急性呼吸困难、持续性心动过速或头晕目眩)发作后1h内发生的以意识骤然丧失为特征、由心脏原因引起的自然死亡。约80%心脏性猝死由冠心病及其并发症引起,其中76%发生在急性心肌梗死发病后。心肌梗死患者发生心脏性猝死的主要原因是快速性室性心律失常,且猝死风险在心肌梗死后1个月内最高。本文就心肌梗死后心脏性猝死预警指标的研究进展作一综述。
Sudden cardiac death refers to natural death caused by a sudden loss of consciousness, occurring within 1 h after the onset of acute symptoms (prolonged chest pain, acute dyspnea, persistent tachycardia, or dizziness) due to a heart attack. About 80% of sudden cardiac death is caused by coronary heart disease and its complications, of which 76% occur after the onset of acute myocardial infarction. The main cause of sudden cardiac death in patients with myocardial infarction is rapid ventricular arrhythmia, and the risk of sudden death is highest within 1 month after myocardial infarction. This article reviews the research progress of early warning index of sudden cardiac death after myocardial infarction.