title: Causes and risk factors for liver injury following bone marrow transplantation.
abstract: OBJECTIVE
  A retrospective study of pretransplantation risk factors predisposing to liver injury following bone marrow transplantation (BMT).
  
  
  BACKGROUND
  Liver complications are a major cause of morbidity and mortality following BMT. Determination of the pretransplantation factors that are likely to lead to liver injury may allow earlier diagnosis after BMT and may possibly improve prognosis.
  
  
  METHODS
  Medical records of BMT patients were reviewed, and results of serial liver function tests and HBV/HCV serology during the pre- and posttransplantation 1-year period were noted. Presence of liver injury was defined as alanine aminotransferase levels twice the upper limit of normal. Forty-four allogeneic and 17 autologous BMTs, performed between 1990 and 2000, were analyzed in the study.
  
  
  CONCLUSIONS
  One-year survival was 77% (34 of 44 patients) for allogeneic BMT and 52% (9 of 17 patients) for autologous BMT. Seventy-two percent (32 of 44) of allogeneic transplant recipients and 47% (8 of 17) of autologous transplant recipients had liver injury during the first year of BMT. The most frequent causes of liver injury were graft-versus-host disease and drug hepatotoxicity for allogeneic BMT and drug hepatotoxicity for autologous BMT. Fulminant hepatic failure occurred in one allogeneic transplant recipient who was a pretransplantation HBV carrier and led to death. Multivariate regression analysis showed that pretransplantation HBV/HCV positivity and pretransplantation elevated liver enzyme levels of any cause were predictive risk factors for post-BMT liver injury, and close follow-up, early diagnosis, and treatment are highly recommended for BMT patients with these risk factors.
authors.affiliation: Department of Gastroenterology, Marmara University School of Medicine, Istanbul, Turkey. osmanozdogan@yahoo.com
authors.forename: Osman
authors.initials: O
authors.lastname: Ozdoğan
authors.forename: Siret
authors.initials: S
authors.lastname: Ratip
authors.forename: Yeşim Al
authors.initials: YA
authors.lastname: Ahdab
authors.forename: Faysal
authors.initials: F
authors.lastname: Dane
authors.forename: Hicham Al
authors.initials: HA
authors.lastname: Ahdab
authors.forename: Neşe
authors.initials: N
authors.lastname: Imeryüz
authors.forename: Nurdan
authors.initials: N
authors.lastname: Tözün
mesh_terms: D000293:Adolescent; D000328:Adult; D016026:Bone Marrow Transplantation / Q000009:adverse effects* / Q000401:mortality; D002423:Cause of Death; D005260:Female; D006086:Graft vs Host Disease / Q000209:etiology; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D008099:Liver / Q000293:injuries*; D008111:Liver Function Tests; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D012189:Retrospective Studies; D012307:Risk Factors; D019172:Transplantation Conditioning
chemical_list: D006514:Hepatitis B Surface Antigens