title: Abnormal findings on routine upper GI series following laparoscopic Roux-en-Y gastric bypass.
abstract: BACKGROUND
  The use of postoperative upper GI series (UGIS) after laparoscopic Roux-en-Y gastric bypass (LRYGBP) varies among bariatric surgeons. The authors describe the findings and impact of UGIS after LRYGBP.
  
  
  METHODS
  From July 2003 to January 2006, 487 patients undergoing primary LRYGBP at a single academic institution had a single-contrast Gastrografin UGIS performed on the first postoperative day, without complication. Patient and operative demographics were: mean age 43 years, mean BMI 47 kg/m2, female 84%, and laparoscopic 100%.
  
  
  RESULTS
  Of the 487 patients, the UGIS revealed 14 (2.9%) major and 88 (15.2%) minor abnormalities. Among the major UGIS abnormalities, 6 (1.2%) demonstrated a gastrojejunal anastomotic (GJA) leak, 8 (1.4%) confirmed complete obstruction at the GJA, and 1 (0.2%) disclosed a communication with the bypassed stomach. For the minor UGIS abnormalities, 45 (9.2%) displayed significant delay in contrast passage through the GJA, 23 (5.0%) had evidence of dilated loops of small and/or large bowel, and 6 (1.2%) verified miscellaneous abnormal findings (malrotation, lower esophageal dysmotility, jejunal clots). Patients with UGIS abnormalities necessitated additional procedures, delayed oral intake and/or longer length of stay (LOS).
  
  
  CONCLUSIONS
  UGIS on postoperative day 1 is a useful means of evaluating postoperative LRYGBP anatomy and influenced postoperative care.
authors.affiliation: Departments of Surgery and Radiology, Stanford School of Medicine, Stanford, CA 94305, USA.
authors.forename: Raghav
authors.initials: R
authors.lastname: Raman
authors.forename: Bhargav
authors.initials: B
authors.lastname: Raman
authors.forename: Pavithra
authors.initials: P
authors.lastname: Raman
authors.forename: Stanford
authors.initials: S
authors.lastname: Rossiter
authors.forename: Myriam J
authors.initials: MJ
authors.lastname: Curet
authors.forename: Robert
authors.initials: R
authors.lastname: Mindelzun
authors.forename: John M
authors.initials: JM
authors.lastname: Morton
mesh_terms: D000328:Adult; D003287:Contrast Media; D003974:Diatrizoate Meglumine; D016099:Endoscopy, Gastrointestinal; D005260:Female; D015390:Gastric Bypass / Q000009:adverse effects*; D006801:Humans; D010535:Laparoscopy; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis*; D011184:Postoperative Period; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D003974:Diatrizoate Meglumine