一、概念婴儿肝炎综合征是指一岁以内的婴儿(包括新生儿)因各种病因引起的黄疸、肝功能损害、肝脾肿大为主要表现的临床症候群。临床表现不典型,重症多,病死率高。其中部分是病毒性肝炎,更多的是细菌或其它病毒感染,而巨细胞病毒或EB病毒引起的肝炎亦不少见,尚有胆道畸形及先天性代谢缺陷等所致。 First, the concept of infant hepatitis syndrome is one year old infants (including newborns) due to various causes of jaundice, liver dysfunction, hepatosplenomegaly as the main manifestation of clinical syndromes. Clinical manifestations of atypical, severe and more, high mortality. Some of them are viral hepatitis, more bacteria or other viral infections, and cytomegalovirus or Epstein-Barr virus caused by hepatitis is not uncommon, there are still biliary deformities and congenital metabolic defects caused.