Etiologic Classification of Diseases
Single ventricle (SV) is a complex congenital heart disease in the clinic, only with a functional ventricle formed during fetal development. The varied malformations will result in different pathological blood circulation in single ventricle disease, so the treatment methods are also different. International Nomenclature and Database System for congenital heart surgery named the disease as functional single ventricle. Following this original classification, the naming of the functional single ventricle on its etiological diagnosis in clinic is list.