克山病病区分布于相对缺硒地带,经有关研究及报道,确有理由认为缺硒在克山病病因学及发病学中,是一个重要因素。但仍存在着诸如低硒地区不一定都是病区等一些重要问题需要进一步研究。鉴于心脏是克山病的主要受累器官,而对克山病病人心肌中硒的含量,迄今还缺乏系统研究。为此,本项研究对克山病人、病区非克山 Keshan disease area is located in the relatively lack of selenium zone, the relevant research and reports, there is reason to believe that lack of selenium in Keshan disease etiology and pathogenesis, is an important factor. However, there are still some important issues such as the low selenium area are not necessarily all the wards and need further study. In view of the heart is the main affected organs Keshan disease, and Keshan disease in patients with myocardial selenium content, so far still lack of systematic research. To this end, this study Keshan patients, ward non-Keshan