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心性猝死是发达的西方国家中年人死亡的最常见原因,大约50％的猝死见于动脉粥样硬化性心脏病的初次发作中。心脏病猝死的高峰时间是清晨7-9点钟。根据早先的统计数据,心肌梗死患者多死于清晨4-7点,在另一项研究中发现只是65岁以上的患者死亡呈明显的时间分布;缺血性心脏病的男女患者死亡高峰在清晨8点。对原先没有心脏病的患者,血清胆固醇升高,高血压,吸烟和糖尿病等因素也是猝死的危险因素,只是还无法确定哪种因素更易引起猝死,引起猝死的最可能病理生理学机制是心律失常,而心室早博很可能是猝死的先兆。
Sudden death from sudden death is the most common cause of death among middle-aged people in developed Western countries. Approximately 50% of sudden death occurs in the first episode of atherosclerotic heart disease. The peak time for sudden cardiac death is 7-9 am in the morning. According to earlier statistics, patients with myocardial infarction died as early as 4-7 in the morning, another study found that only patients over the age of 65 showed significant time distribution of death; the peak of death in men and women of ischemic heart disease in the morning 8 o’clock. Serum cholesterol, hypertension, smoking and diabetes and other factors are also risk factors for sudden death in patients without heart disease, but it is still not sure which factors are more likely to cause sudden death. The most likely pathophysiological mechanism of sudden death is arrhythmia, The ventricular premature beats may be the precursor to sudden death.