扩张型心肌病(DCM)是一种病因不明的,以心脏扩张伴有心功能不全为特征的心脏病。关于儿童 DCM的自然病程报道较少,为此,研究了2岁以上儿童DCM 的自然病程并探讨了影响患儿预后的高危因素。方法来自加拿大多伦多儿童医院,1970～1989年间,2岁以上儿童心肌病447例。符合 DCM25例,男15例,女10例。DCM 诊断标准包括:(1)心力衰竭的 Dilated cardiomyopathy (DCM) is a heart disease characterized by an unexplained heart disease characterized by dilation of the heart. There are few reports on the natural history of childhood DCM. Therefore, the natural history of DCM in children over 2 years old was studied and the risk factors affecting the prognosis of children were explored. Method from Toronto Children’s Hospital, Canada, from 1970 to 1989, 447 cases of cardiomyopathy in children over the age of 2 years. In line with DCM25 cases, 15 males and 10 females. DCM diagnostic criteria include: (1) heart failure