title: ENDOSCOPIC CHANGES RELATED TO GASTROESOPHAGEAL REFLUX DISEASE: COMPARATIVE STUDY AMONG BARIATRIC SURGERY PATIENTS.
abstract: BACKGROUND
  Obesity is correlated with several comorbidities, including gastroesophageal reflux disease. Its main complications are detectable by endoscopy: erosive esophagitis and Barrett's esophagus.
  
  
  OBJECTIVE
  To correlate erosive esophagitis and hiatal hernia with the degree of body mass index (BMI).
  
  
  METHODS
  Was performed a retrospective analysis of 717 preoperative endoscopic reports of bariatric patients. Fifty-six (8%) presented hiatal hernia, being 44 small, nine medium and five large. Esophagitis was classified by Los Angeles classification.
  
  
  RESULTS
  There was no correlation between the presence and dimension of hiatal hernia with BMI. One hundred thirty-four (18.7%) patients presented erosive esophagitis. Among them, 104 (14.5%) had esophagitis grade A; 25 (3.5%) grade B; and five (0.7%) grade C. When considering only the patients with erosive esophagitis, 77.6% had esophagitis grade A, 18.7% grade B and 3.7% grade C. Were identified only two patients with Barrett's esophagus (0,28%).
  
  
  CONCLUSIONS
  There was a positive correlation between the degree of esophagitis with increasing BMI.
authors.affiliation: Hospital das Clinicas, Medical School, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Marco Aurelio
authors.initials: MA
authors.lastname: Santo
authors.affiliation: Hospital das Clinicas, Medical School, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Sylvia Regina
authors.initials: SR
authors.lastname: Quintanilha
authors.affiliation: Hospital das Clinicas, Medical School, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Cesar Augusto
authors.initials: CA
authors.lastname: Mietti
authors.affiliation: Hospital das Clinicas, Medical School, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Flavio Masato
authors.initials: FM
authors.lastname: Kawamoto
authors.affiliation: Hospital das Clinicas, Medical School, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Allan Garms
authors.initials: AG
authors.lastname: Marson
authors.affiliation: Hospital das Clinicas, Medical School, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Roberto
authors.initials: R
authors.lastname: de Cleva
mesh_terms: D050110:Bariatric Surgery; D001471:Barrett Esophagus / Q000209:etiology* / Q000473:pathology*; D004941:Esophagitis / Q000209:etiology* / Q000473:pathology*; D004945:Esophagoscopy; D005764:Gastroesophageal Reflux / Q000150:complications*; D006551:Hernia, Hiatal / Q000209:etiology* / Q000473:pathology*; D006801:Humans; D009765:Obesity / Q000150:complications* / Q000601:surgery; D012189:Retrospective Studies