title: Evaluating preoperative weight loss, binge eating disorder, and sexual abuse history on Roux-en-Y gastric bypass outcome.
abstract: BACKGROUND
  Roux-en-Y gastric bypass patients often undergo preoperative dieting and psychological assessment before surgery. We examined preoperative weight loss, binge eating disorder (BED), and sexual abuse history and the interactions of these predictors to determine whether a cautionary approach to Roux-en-Y gastric bypass is warranted.
  
  
  METHODS
  Consecutive subjects undergoing Roux-en-Y gastric bypass at our institution from January 1997 to December 2002 were reviewed. The postoperative excess weight loss (EWL) at 1, 3, 6, 12, 18, and 24 months and the perioperative complications were measured. EWL was compared at 12 and 24 months postoperatively in the categories of the presence/absence of preoperative weight loss, BED, and sexual abuse history. The perioperative complications were examined in the preoperative weight change groups.
  
  
  RESULTS
  Of 154 patients, 121 were included. No significant difference in EWL or perioperative complications was observed between those who lost or gained weight preoperatively. Of the 121 patients, 32% and 17% reported a history of BED and sexual abuse, respectively. No statistically significant difference was observed in the EWL between those with and without BED at 12 and 24 months postoperatively. The EWL in those with and without a sexual abuse history at 12 and 24 months was 57.67% and 66.32% (P <.05) and 64.40% and 70.97% (P = NS). No statistically significant interaction between EWL and sexual abuse*BED/sexual abuse*preoperative weight loss was observed.
  
  
  CONCLUSIONS
  Only sexual abuse history at postoperative month 12 had a negative effect on EWL. Otherwise, physicians can expect to see successful EWL in these subjects up to 24 months postoperatively. We recommend that additional investigation be done of those with BED and a sexual abuse history.
authors: Department of Nutrition and Metabolic Research Center, Scripps Green Clinic, La Jolla, California, USA.
authors: Ken
authors: K
authors: Fujioka
authors: Eric
authors: E
authors: Yan
authors: He-Jing
authors: HJ
authors: Wang
authors: Zhaoping
authors: Z
authors: Li
mesh_terms: D000328:Adult; D000368:Aged; D000713:Anastomosis, Roux-en-Y / Q000523:psychology; D052018:Bulimia Nervosa / Q000523:psychology*; D005260:Female; D015390:Gastric Bypass / Q000379:methods* / Q000523:psychology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care; D012189:Retrospective Studies; D012742:Sex Offenses / Q000523:psychology*; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D015431:Weight Loss