title: Montreal classification of patient operated for Crohn's disease and identification of surgical recurrence predictors.
abstract: OBJECTIVE
  to evaluate Crohn's disease recurrence and its possible predictors in patients undergoing surgical treatment.
  
  
  METHODS
  We conducted a retrospective study with Crohn's disease (CD) patients undergoing surgical treatment between January 1992 and January 2012, and regularly monitored at the Bowel Clinic of the Hospital das Clínicas of the UFMG.
  
  
  RESULTS
  we evaluated 125 patients, 50.4% female, with a mean age of 46.12 years, the majority (63.2%) diagnosed between 17 and 40 years of age. The ileum was involved in 58.4%, whereas stenotic behavior was observed in 44.8%, and penetrating, in 45.6%. We observed perianal disease in 26.4% of cases. The follow-up average was 152.40 months. Surgical relapse occurred in 29.6%, with a median time of 68 months from the first operation.
  
  
  CONCLUSIONS
  The ileocolic location, penetrating behavior and perianal involvement (L3B3p) were associated with increased risk of surgical recurrence.
authors.affiliation: Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
authors.forename: Cristiane de Souza
authors.initials: Cde S
authors.lastname: Bechara
authors.affiliation: Departamento de Clinica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Antonio
authors.initials: A
authors.lastname: Lacerda Filho
authors.affiliation: Department of Internal Medicine, Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Maria de Lourdes Abreu
authors.initials: Mde L
authors.lastname: Ferrari
authors.affiliation: Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Déborah Almeida Roquette
authors.initials: DA
authors.lastname: Andrade
authors.affiliation: Departamento de Clinica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Magda Maria Profeta da
authors.initials: MM
authors.lastname: Luz
authors.affiliation: Departamento de Clinica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
authors.forename: Rodrigo Gomes
authors.initials: RG
authors.lastname: da Silva
mesh_terms: D003424:Crohn Disease / Q000145:classification* / Q000453:epidemiology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies