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扩张型心肌病是一组心肌的异质性疾病,其特点是在没有异常负荷状态或没有导致心肌收缩力下降的缺血因素存在的前提下,表现为心室扩大和心肌收缩力下降。扩张型心肌病病因复杂多样,临床表现近似,诊断和鉴别诊断困难,治疗效果差异较大,预后有别。
Dilated cardiomyopathy is a group of heterogeneous cardiac disorders characterized by ventricular enlargement and decreased myocardial contractility without the presence of an abnormally loaded condition or with ischemic factors that do not result in decreased myocardial contractility. The etiology of dilated cardiomyopathy is complex and diverse, the clinical manifestations are similar, the diagnosis and differential diagnosis are difficult, the treatment effect is quite different, and the prognosis is different.