title: Upper gastrointestinal swallow study following bariatric surgery: institutional review and review of the literature.
abstract: BACKGROUND
  The aim of this study was to determine the efficacy of routine upper gastrointestinal imaging following the three forms of laparoscopic bariatric surgery completed at our institution (laparoscopic Roux en Y gastric bypass (LRYGB), laparoscopic sleeve gastrectomy (LS), and laparoscopic adjustable gastric banding (LAGB)).
  
  
  METHODS
  Radiograph reports were reviewed from the period of January 2005 to July 2010. During that time, 129 patients underwent LRYGB, 209 underwent LS, and 12 patients underwent LAGB. Of those patients, 120 LRYGB patients, 188 LS patients, and 11 LAGB patients underwent upper gastrointestinal studies on postoperative days (POD) 1 or 2.
  
  
  RESULTS
  Of the 319 total patients who underwent UGI, no contrast leaks were found. One LRYGB patient was found to have stenosis of the jejunojejunal anastomosis and was taken to the operating room for revision. A total of ten patients went on to develop leaks: four LRYGB patients, six LS patients, and zero LAGB patients.
  
  
  CONCLUSIONS
  The results of our study show that a positive UGI study for stricture has a specificity of 100 %. In terms of leak, which offers a much higher risk of significant morbidity and mortality, UGI was unable to find any on postoperative days 1 or 2. Based on the results of this study, our institution has stopped completing routine UGI on POD 1 following bariatric surgery.
authors.affiliation: Dwight David Eisenhower Army Medical Center, 300 Hospital Rd, Fort Gordon, GA 30905, USA. joel.r.brockmeyer@gmail.com
authors.forename: Joel R
authors.initials: JR
authors.lastname: Brockmeyer
authors.forename: Todd E
authors.initials: TE
authors.lastname: Simon
authors.forename: Richard K
authors.initials: RK
authors.lastname: Jacob
authors.forename: Farah
authors.initials: F
authors.lastname: Husain
authors.forename: Yong
authors.initials: Y
authors.lastname: Choi
mesh_terms: D000293:Adolescent; D000328:Adult; D057868:Anastomotic Leak / Q000000981:diagnostic imaging* / Q000601:surgery; D003287:Contrast Media / Q000008:administration & dosage*; D005260:Female; D015390:Gastric Bypass / Q000009:adverse effects / Q000379:methods; D015391:Gastroplasty / Q000009:adverse effects / Q000379:methods*; D006801:Humans; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery; D011237:Predictive Value of Tests; D011859:Radiography; D012189:Retrospective Studies; D016896:Treatment Outcome; D041742:Upper Gastrointestinal Tract / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery; D055815:Young Adult
chemical_list: D003287:Contrast Media