title: [Life-threatening complications of Crohn's disease and ulcerative colitis: a systematic analysis of admissions to an ICU during 18 years].
abstract: OBJECTIVE
  Despite numerous publications on the epidemiology of inflammatory bowel diseases (IBD) there is a lack of systematic investigations on live-threatening complications of IBD and their causes. This study evaluates risk factors, course and outcome in intensive-care patients which were related to complications of IBD.
  
  
  METHODS
  Among 6071 admissions to the intensive-care unit (ICU) of a gastroenterological department (university hospital with IBD-outpatient unit) between 1.1.1991 and 31.1.2008 36 ICU admissions of 28 patients with IBD were documented and prospectively analysed from 1996 onwards, using a structured questionnaire on causes for ICU admission as well as risk factors regarding death, organ failure and length of ICU stay.
  
  
  RESULTS
  ICU admissions of IBD patients mainly resulted from three causes: complications specific to IBD (44 %), including acute flare-up, perforation and electrolyte imbalance, septic complications (22 %) and thromboembolic complications (17 %). Five patients died, all from septic complications related to immunosuppression including candida sepsis, varicella pneumonia during treatment with infliximab, and pneumocystis pneumonia related to treatment with azathioprine. The most important risk factors according to uni- and multivariate analyses were old age on ICU-admission and first diagnosis of IBD, previous surgery related to IBD and Crohn's disease.
  
  
  CONCLUSIONS
  Complications of both IBD and immunosuppressive therapy may be live-threatening in patients with IBD. Better characterization of patients with a high probability of improved outcome by immunosuppressive and/or antibody-therapy seems to be preferable to noncritical early use of these drugs.
authors.affiliation: II. Medizinische Klinik, Intensivstation 2/11, Klinikum Rechts der Isar, München. Wolfgang.Huber@lrz.tum.de
authors.forename: W
authors.initials: W
authors.lastname: Huber
authors.forename: G
authors.initials: G
authors.lastname: Herrmann
authors.forename: T
authors.initials: T
authors.lastname: Schuster
authors.forename: V
authors.initials: V
authors.lastname: Phillip
authors.forename: B
authors.initials: B
authors.lastname: Saugel
authors.forename: C
authors.initials: C
authors.lastname: Schultheiss
authors.forename: J
authors.initials: J
authors.lastname: Hoellthaler
authors.forename: J
authors.initials: J
authors.lastname: Gaa
authors.forename: M
authors.initials: M
authors.lastname: Hartel
authors.forename: R M
authors.initials: RM
authors.lastname: Schmid
authors.forename: W
authors.initials: W
authors.lastname: Reindl
mesh_terms: D000328:Adult; D000368:Aged; D002423:Cause of Death; D003093:Colitis, Ulcerative / Q000150:complications* / Q000401:mortality / Q000628:therapy; D003424:Crohn Disease / Q000150:complications* / Q000401:mortality / Q000628:therapy; D005260:Female; D005858:Germany; D017052:Hospital Mortality; D006785:Hospitals, University; D006801:Humans; D007362:Intensive Care Units; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome; D055815:Young Adult