title: The value of myenteric plexitis to predict early postoperative Crohn's disease recurrence.
abstract: OBJECTIVE
  Early ileocolonoscopy allows detection of recurrence after surgically induced remission of Crohn's disease (CD). Unequivocal histologic markers predicting recurrence have not been identified. We assessed the predictive value of neural lesions for early endoscopic CD recurrence and long-term reintervention risk.
  
  
  METHODS
  Ileocolonic resection specimens from 59 patients with CD and 21 control patients were histologically scored for typical inflammatory bowel disease lesions, neural hypertrophy, and presence and severity of inflamed ganglia and nerve bundles. Endoscopic recurrence was determined at 3 months in all patients and at 1 year in 32 patients as part of 2 prospective clinical trials.
  
  
  RESULTS
  Myenteric plexitis of the proximal resection margin was present in 32 patients with CD (54%) in absence of surrounding inflammation. Patients with this feature had a higher endoscopic recurrence (Rutgeerts score >/=2) at 3 months (75% vs 41%; odds ratio, 4.36; 95% confidence interval, 1.44-13.23; P = .008) and at 1 year (93% vs 59%; odds ratio, 9.80; 95% confidence interval, 1.04-92.70; P = .041) and had a trend toward an earlier reintervention (mean, 7.00 vs 5.30 years; P = .174). The severity of myenteric plexitis in the proximal resection margin correlated with the severity of endoscopic recurrence at 3 months (r = 0.334, P = .010) and 1 year (r = 0.560, P = .001). Myenteric plexitis was the only consistent predictor of endoscopic recurrence.
  
  
  CONCLUSIONS
  The presence of myenteric plexitis in proximal margins of ileocolonic resection specimens is predictive of early endoscopic CD recurrence.
authors.affiliation: Department of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium.
authors.forename: Marc
authors.initials: M
authors.lastname: Ferrante
authors.forename: Gert
authors.initials: G
authors.lastname: de Hertogh
authors.forename: Tibor
authors.initials: T
authors.lastname: Hlavaty
authors.forename: Geert
authors.initials: G
authors.lastname: D'Haens
authors.forename: Freddy
authors.initials: F
authors.lastname: Penninckx
authors.forename: Andre
authors.initials: A
authors.lastname: D'Hoore
authors.forename: Séverine
authors.initials: S
authors.lastname: Vermeire
authors.forename: Paul
authors.initials: P
authors.lastname: Rutgeerts
authors.forename: Karel
authors.initials: K
authors.lastname: Geboes
authors.forename: Gert
authors.initials: G
authors.lastname: van Assche
mesh_terms: D000714:Anastomosis, Surgical; D001707:Biopsy, Needle; D016022:Case-Control Studies; D003082:Colectomy / Q000009:adverse effects* / Q000379:methods; D016001:Confidence Intervals; D003424:Crohn Disease / Q000175:diagnosis* / Q000601:surgery*; D005260:Female; D006801:Humans; D007082:Ileum / Q000601:surgery; D007150:Immunohistochemistry; D007413:Intestinal Mucosa / Q000473:pathology; D008297:Male; D009197:Myenteric Plexus / Q000473:pathology*; D009443:Neuritis / Q000175:diagnosis*; D016017:Odds Ratio; D011237:Predictive Value of Tests; D011336:Probability; D011379:Prognosis; D012008:Recurrence; D018570:Risk Assessment; D012494:Sampling Studies; D012720:Severity of Illness Index; D013997:Time Factors