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冠状动脉是主动脉根部的第一对分支,它象帽子一样,包布于整个心脏,担任着供给心肌营养的重要任务。心脏是机体重要的生命器官,冠脉循环的供应量必须满足心肌代谢的需求量,一旦冠状动脉发生病变,使心肌发生急性或慢性的、相对性或绝对性的缺血缺氧,便引起心绞痛、心肌梗塞等疾病,这就是冠状动脉性心脏病,是人病死的主要原因之一。在欧美国家中,冠状动脉病发病率高达30％,而死于冠状动脉性心脏病者,在美国、英国、意大利和日本分别为28.6％、29.8％、18.7％及 8.7％。1955年苏联城市医院的260万心血管病人中,冠状动脉粥样
Coronary artery is the first branch of the aortic root, which, like a hat, covers the entire heart and serves as an important task for cardiac nutrition. The heart is an important vital organ of the body, the supply of coronary circulation must meet the demand for myocardial metabolism, once the coronary artery lesions, myocardial acute or chronic, relative or absolute ischemia and hypoxia, they cause angina , Myocardial infarction and other diseases, which is coronary heart disease, is one of the major causes of death. In Europe and the United States, the incidence of coronary artery disease is as high as 30%. Those who die of coronary heart disease are 28.6%, 29.8%, 18.7% and 8.7% in the United States, Britain, Italy and Japan respectively. Of the 2.6 million cardiovascular patients in the Soviet City Hospital in 1955, coronary atherosclerosis