心血管疾病是发达国家患者早期死亡的最主要原因。其中很大一部分是由于冠状动脉疾病引起。据国外相关文献报道 ,约 5 0 %的患者冠状动脉粥样硬化的首发表现是心肌梗塞 ,超过 5 0 %的心肌梗塞患者在发病急性期一个月内死亡[1,2 ] 。随着生活水平的提高 ,国人冠心病的发病率逐年 Cardiovascular disease is the leading cause of early death in developed countries. A large proportion of this is due to coronary artery disease. According to foreign literature, about 50% of patients with coronary atherosclerosis in the first manifestation of myocardial infarction, more than 50% of patients with myocardial infarction died in the acute phase of onset within 1 month [1,2]. With the improvement of living standards, the incidence of coronary heart disease in China year after year