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调查目的1959年11月中旬以后,患区爆发急性克山病,患者发病重而急,尤其小儿发病多,病死率高,纸占死亡人数中三分之二。为了早日控制小儿发病,了解当地儿童心肌受损和染病情况,了解发病户与普通户心肌受损情况,以便早期发现患者做好事先预防,乃选择该患区中小学学生为对象,进行普查。过去文献对于克山病的心脏体征一般仅记为心尖或三尖瓣区有轻度一、二级吹风性收缩期
Investigation Objective After mid-November 1959, acute Keshan disease broke out in the affected area. The incidence of severe Keshan disease was very high. In particular, the incidence of pediatric Killer disease was high and the case fatality rate was high. Paper accounted for two thirds of the deaths. In order to early control of pediatric disease, understand the local children with myocardial damage and disease, to understand the incidence and common household myocardial damage, in order to early detection of patients do a good job of prior prevention, is to select the affected area primary and secondary students as the object, for census. The past literature for Keshan’s heart symptoms are generally only recorded as apical or tricuspid valve area with mild primary and secondary systolic