冠心病的病情多数呈慢性经历,但也有少数患者病情进展急骤,甚至发生猝死,引起心脏病猝死的主要原因有:①供给心脏血液的冠状动脉主支突发梗塞(多由动脉管腔硬化变窄和血栓形成所致),致心肌大面积缺血和坏死;②广泛性急性心肌梗塞后,由于心肌细胞缺乏营养,致心肌严重坏死导致心脏破裂;③在动脉粥样硬化的基础上,因外界的某种因 The majority of patients with CHD showed chronic exacerbation. However, there were a few patients whose disease progressed rapidly and even sudden death occurred. The main causes of sudden cardiac death were as follows: (1) sudden onset of infarction in the main branch of coronary artery Narrow and thrombosis caused by a large area of ​​myocardial ischemia and necrosis; ② extensive acute myocardial infarction, due to lack of nutrition myocardial cells, severe myocardial necrosis leading to heart rupture; ③ on the basis of atherosclerosis, due to Something outside