title: Effect of ursodeoxycholic acid on liver function in children after successful surgery for biliary atresia.
abstract: OBJECTIVE
  Although ursodeoxycholic acid has been used to treat various cholestatic liver diseases in children, few data are available about its efficacy in biliary atresia. The aim of this study was to assess the effect of ursodeoxycholic acid treatment on liver function in children who underwent successful surgery for biliary atresia.
  
  
  METHODS
  We prospectively studied 16 children with biliary atresia who underwent successful portoenterostomies (postoperative conjugated bilirubin concentration: <34 micromol/L) and were treated with ursodeoxycholic acid for at least 18 months after surgery. Ursodeoxycholic acid treatment was then discontinued. Clinical and biological assessment was performed at the time of discontinuation of ursodeoxycholic acid treatment (T0), at follow-up (T1) and, if the clinical or biological status worsened, after resumption of ursodeoxycholic acid treatment (T2).
  
  
  RESULTS
  Ursodeoxycholic acid treatment was resumed in 13 cases. In 1 patient, jaundice recurred after ursodeoxycholic acid therapy was discontinued but abated after resumption of treatment. In 13 children, liver function worsened significantly when ursodeoxycholic acid was discontinued. T1 versus T0 concentrations expressed as multiples of the upper limit of the normal range (in parentheses) were as follows: alanine aminotransferase, 3.0 xN (0.8-7.0) vs 1.5 xN (0.5-5.4); gamma glutamyl transpeptidase, 8.0 xN (1.8-30.2) vs 4.2 xN (0.5-27.4); and aspartate aminotransferase, 1.7 xN (0.7-6.0) vs 1.3 xN (0.6-3.4). When ursodeoxycholic acid treatment was resumed, liver function had improved in all patients by T2. Concentrations of endogenous bile acids tended to be elevated at T1 (not significant) and were significantly decreased at T2.
  
  
  CONCLUSIONS
  Our study demonstrates the beneficial effect of ursodeoxycholic acid on liver function in children after successful surgery for biliary atresia.
authors.affiliation: Département de gastroentérologie, hépatologie et nutrition pédiatrique, Hôpital Jeanne de Flandres, CHRU Lille, 59000 Lille, France.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Willot
authors.forename: Stephanie
authors.initials: S
authors.lastname: Uhlen
authors.forename: Laurent
authors.initials: L
authors.lastname: Michaud
authors.forename: Gilbert
authors.initials: G
authors.lastname: Briand
authors.forename: Michel
authors.initials: M
authors.lastname: Bonnevalle
authors.forename: Rony
authors.initials: R
authors.lastname: Sfeir
authors.forename: Frédéric
authors.initials: F
authors.lastname: Gottrand
mesh_terms: D001656:Biliary Atresia / Q000175:diagnosis / Q000188:drug therapy* / Q000401:mortality / Q000601:surgery*; D002756:Cholagogues and Choleretics / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008099:Liver / Q000187:drug effects / Q000201:enzymology; D008111:Liver Function Tests; D008297:Male; D011171:Portoenterostomy, Hepatic / Q000379:methods; D011336:Probability; D011446:Prospective Studies; D012720:Severity of Illness Index; D018709:Statistics, Nonparametric; D014580:Ursodeoxycholic Acid / Q000008:administration & dosage*
chemical_list: D002756:Cholagogues and Choleretics; D014580:Ursodeoxycholic Acid