title: Response pattern recognition in paediatric Crohn's disease patients treated with enteral nutrition.
abstract: OBJECTIVE
  To describe the response pattern to enteral nutrition (EN) in paediatric patients with moderately to severely active Crohn's disease (CD).
  
  
  METHODS
  A previously described method for assessment of response pattern to various treatments for CD was used. Patients who received EN during the 10-year period 1995-2005 were prospectively registered. Patient data, clinical outcome, time to relapse and subsequent need for treatment were extracted from the files. Four weeks treatment with polymeric ready-to-use liquid formula was given. The clinical outcome was assessed by pattern recognition of the disease course 30 days (immediate response) and 90 days (long-term response) after start of EN.
  
  
  RESULTS
  Thirty-one patients (17/14 M/F), median age 14 years (range 7.5 -19.8 years), received 46 courses of EN. Thirty-seven courses (80%) were completed. Immediate response: twenty-five courses (67%) led to complete response (CR), 8 (22%) to partial response (PR) and in 4 courses (11%) no response (NR) was achieved. Long-term response: 21 courses (64%) led to prolonged response (PRO), defined as either maintenance of complete response (CR) or partial response (PR), while 12 courses (36%) were followed by loss of response (LR). The median time to relapse was 8.3 months (range 0.5-39 months).
  
  
  CONCLUSIONS
  We found our model of response pattern to be a useful instrument for the description of results obtained during EN in children with CD.
authors.affiliation: Department of Paediatrics, Hvidovre University Hospital, Copenhagen, Denmark.
authors.forename: N Kjaersgaard
authors.initials: NK
authors.lastname: Nielsen
authors.forename: V
authors.initials: V
authors.lastname: Wewer
authors.forename: L
authors.initials: L
authors.lastname: Skafte
authors.forename: A
authors.initials: A
authors.lastname: Paerregaard