遗传因素是发生缺血性心脏病的重要危险因素之一。据报导,先证者发病年龄越轻,下一代发生缺血性心脏病的机率越大;发病年龄在20岁以下者,病情严重,常在40岁以前死亡。缺血性心脏病的遗传素质是经过精和脂质代谢障碍、适应机制障碍、精神植物神经等因素而发展为缺血性心脏病的。作者检查其父45岁以前患心肌梗塞的少年135例,其父在冠状动脉粥样硬化的背景 Genetic factors is one of the important risk factors of ischemic heart disease. It is reported that the younger the proband age, the greater the probability of the next generation of ischemic heart disease; onset of age below 20 years of age, a serious condition, often before the age of 40 died. The genetic quality of ischemic heart disease is refined and lipid metabolism disorders, adaptation mechanisms disorders, mental autonomic and other factors and the development of ischemic heart disease. The authors examined 135 children whose father had a myocardial infarction before the age of 45 and whose father had a background in coronary atherosclerosis