title: Diagnosis and management of bile leaks after blunt liver injury.
abstract: BACKGROUND
  Nonoperative management (NOM) of blunt liver injuries (BLIs) is common, but little data exist on the management of complications related to NOM. Furthermore, bile leaks are emerging as frequent complications of NOM. The goal of this study was to determine which BLI patients are at greatest risk for bile leaks and how to manage this complication.
  
  
  METHODS
  Patients treated with NOM, including angiographic embolization (AE) and observation, were compared with those undergoing operation (OR). Mortality, hospital length of stay, liver-related complications, and severity of liver injury were compared among the groups.
  
  
  RESULTS
  Two hundred eighty-one patients sustained a BLI from 1997 through 2004. The Injury Severity Score and age of the groups were similar. The mortality rate of the OR patients was higher (P = .02). All bile leaks occurred in patients with a liver Abbreviated Injury Score (AIS) of > or = 4. For survivors of more than 4 days, 71% of OR, 50% of AE, and 17% of observed patients developed bile leaks. For the OR and AE groups, HIDA scanning detected all leaks, leading to earlier drainage procedures. Detection of a bile leak in NOM patients before 5 days of hospitalization led to shorter HLOS, P = .02. No patient with a negative HIDA scan developed a subsequent bile leak.
  
  
  CONCLUSIONS
  NOM of BLIs is associated with lower mortality, but significant complications. Bile leaks are more common in patients with higher liver AIS, and in this study presented in only those with liver AIS > or = 4. HIDA scanning successfully diagnosed all patients with bile leaks and led to less invasive drainage procedures over time and shorter HLOS.
authors.affiliation: Trauma Burn Center, University of Michigan Health System, Ann Arbor 48109-0033, USA. wlwahl@med.umich.edu
authors.forename: Wendy L
authors.initials: WL
authors.lastname: Wahl
authors.forename: Mary-Margaret
authors.initials: MM
authors.lastname: Brandt
authors.forename: Mark R
authors.initials: MR
authors.lastname: Hemmila
authors.forename: Saman
authors.initials: S
authors.lastname: Arbabi
mesh_terms: D000328:Adult; D001646:Bile / Q000378:metabolism*; D001660:Biliary Tract Diseases / Q000175:diagnosis* / Q000209:etiology / Q000378:metabolism / Q000628:therapy*; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D007098:Imino Acids; D015601:Injury Severity Score; D007902:Length of Stay; D008099:Liver / Q000293:injuries*; D008297:Male; D008875:Middle Aged; D009026:Mortality; D013514:Surgical Procedures, Operative; D014949:Wounds, Nonpenetrating / Q000150:complications* / Q000473:pathology / Q000503:physiopathology
chemical_list: D007098:Imino Acids; C049470:lidofenin