title: Endoscopic management of eroded prosthesis in vertical banded gastroplasty patients.
abstract: BACKGROUND
  One of the major complications of applying a prosthetic device to facilitate gastric partitioning has been intraluminal erosion of the prosthesis. Removing an eroded gastric band is fraught with difficulty secondary to the extensive inflammatory response around the proximal stomach and left lobe of the liver. As a result, bariatric clinicians have attempted to apply endoscopic technology to facilitate removal of eroded gastric prostheses. Our study reports on our experience of applying endoscopic scissor transection to remove eroded gastric prostheses in a large tertiary-care medical center.
  
  
  METHODS
  A retrospective chart review was conducted to identify all adult (>18 years old) patients managed endoscopically for removal of eroded prosthesis post bariatric surgery at the Baylor College of Medicine Comprehensive Bariatric Surgery Center and the University of Texas-Houston Bariatric Surgery Program.
  
  
  RESULTS
  Nine patients, mean body mass index (BMI) 39.5 +/- 7.3 kg/m(2), were managed endoscopically to remove eroded gastric prosthesis post vertical banded gastroplasty. All patients (9/9) reported symptoms consistent with a proximal gastric outlet obstruction (dysphagia, nausea, vomiting). Inadequate weight loss was reported by 67% (6/9) of patients. The mean time for endoscopic band removal was 28.0 +/- 8.8 min. All eroded bands were evident at the end of the gastric pouch and were visualized with either a normal or retroflexed endoscopic view. All nine patients were discharged the same day of their procedure. Mean follow-up of the patients was 9.7 weeks (1-30 weeks). Three patients underwent revisional bariatric surgery following the band removal.
  
  
  CONCLUSIONS
  Our study demonstrates that endoscopic scissor transaction is a safe and effective modality in removing eroded gastric prostheses after vertical banded gastroplasty and avoids the pitfalls associated with removing the eroded bands surgically. It also allows the patient and surgeon to make an insightful decision regarding a revisional bariatric surgical procedure, without being contingent on addressing the eroded gastric band.
authors.affiliation: Center for Advancement of Minimally Invasive Surgery, University of Alberta, Room 405 CSC, Edmonton, AB, Canada. shahzeer@ualberta.ca
authors.forename: Shahzeer
authors.initials: S
authors.lastname: Karmali
authors.forename: Brad
authors.initials: B
authors.lastname: Snyder
authors.forename: Erik B
authors.initials: EB
authors.lastname: Wilson
authors.forename: Matthew D
authors.initials: MD
authors.lastname: Timberlake
authors.forename: Vadim
authors.initials: V
authors.lastname: Sherman
mesh_terms: D000328:Adult; D004724:Endoscopy; D005260:Female; D015391:Gastroplasty / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery; D019736:Prostheses and Implants / Q000009:adverse effects*; D011475:Prosthesis Failure; D012189:Retrospective Studies