克山病是一种原因未明的地方性心肌病,自被发现迄今已近四十年历史,关于克山病的病因曾有多种看法,也积累了不少实践和理论资料。但由于各种假说根据不一,对本病特点的认识和解释也不同,故尚难以定论。 Keshan disease is a endemic cardiomyopathy of unknown cause. Since it was discovered that it has been nearly 40 years of history, there have been many opinions on the causes of Keshan disease and a lot of practical and theoretical data have been accumulated. However, due to various hypotheses based on different understanding of the characteristics of the disease and explain different, it is still difficult to determine.