title: [A retrospective study on pathological and clinical characteristics of 3 932 children with liver diseases].
abstract: OBJECTIVE
  To explore the pathological and clinical characteristics of children with liver diseases by retrospective study on clinical and liver biopsy pathological data of children with liver diseases.
  
  
  METHODS
  This retrospective analysis was performed at Beijing No. 302 Hospital among 3 932 children with liver diseases who visited the hospital from January 2001 to December 2012. The kinds of diseases were compared with the results of 1983-2000.
  
  
  RESULTS
  (1) Liver biopsy was successful in 99.72% (3 932/3 943) of cases of 2001-2012 group, complications occurred in 31 children only. (2) Of the 3 932 cases, 2 647 (67.32%) had hepatitis , non-hepatotropic viral hepatitis and non viral liver disease were seen in 365 cases (9.28%), and 920 cases (23.4%), respectively. Among 2 647 cases with viral hepatitis, 2 115 were hepatitis B (79.90%), 521 hepatitis C (19.69%), 7 were hepatitis A (0.26%) and 4 hepatitis E (0.15%), respectively. (3) In 2001-2012 group, the degrees of inflammatory activity (>G2) of liver were seen in 9.57% (202/2 111) patients with hepatitis B, while 23.57% (132/560) in 1983-2000 group. There was significant difference between the two groups (χ(2)=80.36, P=0.00 ). (4) Significant difference was observed in the rate of non viral liver disease between 2001-2012 group (23.40%, 920/3 932) and 1983-2000 group (9.61%, 98/1 020) (χ(2)=93.46, P=0.00). In 2001-2012 group, including 46 kinds of diseases, which were significantly higher than those of 1983-2000 group (18 kinds). In 2000-2012, the main causes of diseases were liver degeneration (18.26%, 168/920), drug-induced liver injury (13.59%, 125/920), fatty liver (8.80%, 81/920) and liver glycogen accumulation disease (8.70%, 80/920). While in 1983-2000 group, the main causes were liver degeneration (20.41%, 20/98), fatty liver (16.33%, 16/98), glycogen storage disease (10.20%, 10/98) and myopathy (9.18%, 9/98).
  
  
  CONCLUSIONS
  Liver biopsy in children is safe and feasible. Hepatitis B virus was ranked first in children with liver diseases in 2001-2012 group. The kinds of non viral hepatic disorders had changed and extended.
authors.affiliation: Pediatric Liver Disease Therapy and Research Center, People's Liberation Army(PLA) 302 Hospital, Beijing 100039, China.
authors.forename: Hongfei
authors.initials: H
authors.lastname: Zhang
authors.forename: Yi
authors.initials: Y
authors.lastname: Dong
authors.forename: Limin
authors.initials: L
authors.lastname: Wang
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Xu
authors.forename: Dawei
authors.initials: D
authors.lastname: Chen
authors.forename: Yu
authors.initials: Y
authors.lastname: Gan
authors.forename: Fuchuan
authors.initials: F
authors.lastname: Wang
authors.forename: Yanwei
authors.initials: Y
authors.lastname: Zhong
authors.forename: Jianguo
authors.initials: J
authors.lastname: Yan
authors.affiliation: Email: 302zss@sina.com.
authors.forename: Shishu
authors.initials: S
authors.lastname: Zhu
authors.forename: Taihe
authors.initials: T
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D001707:Biopsy, Needle; D002648:Child; D002675:Child, Preschool; D005260:Female; D006509:Hepatitis B / Q000473:pathology; D006525:Hepatitis, Viral, Human / Q000473:pathology*; D006527:Hepatolenticular Degeneration / Q000453:epidemiology / Q000473:pathology; D006801:Humans; D007223:Infant; D008099:Liver / Q000473:pathology*; D008107:Liver Diseases / Q000473:pathology*; D008111:Liver Function Tests; D008297:Male; D012189:Retrospective Studies