Mo1566 Utility of Double Balloon Enteroscopy in Patients With Surgically Altered Bowel Anatomy After Bariatric Surgery

database were reviewed to collect data. Results: 25 patients (17 women/8 men, mean age 45.3 10.6 years) were included. Post-operative collections occured after sleeve gastrectomy in 20 patients and after gastric bypass in 5. A median of 48 days (range 5-1071) elapsed between initial surgery and transfistulary stenting. 11 patients were treated by transfistulary stenting as primary treatment, while 14 patients had previously failed treatment attempts with one or more endoscopic methods (endoprosthetics, clips and/or fistula plugs). Internal drainage was initially maintained by placement of 2 double pigtail stents (7 or 8.5 Fr ) in 21 patients or by one stent and a naso-cystic catheter in 4. In 5 patients, transfistulary stenting was combined with percutaneous drainage. No complication occurred during the initial drainage procedure. In 6 patients, trans-fistulary stenting was not successful and surgery was necessary. Clinical success was achieved in 19 patients (76%). In 7 successfully treated patients, stents are still in place after a median stenting duration of 102 days (range 41-1620) and no complication has occurred. In 4 patients with spontaneous stent migration, no complication has occurred after a median follow-up duration of 137.5 days (range 85-390). In 8 patients, the plastic stents have been removed after a median stent indwell duration of 186.3 days (range 24-773) and no complication has occurred after a median follow-up duration of 159.4 days (range 5-461). In these patients, stents were either removed electively (2 patients) or because of dysphagia or symptomatic stent-induced esophageal ulcerations (6 patients). Conclusions: Trans-fistulary drainage of post-bariatric abdominal collections is safe and is associated with high success rates. This technique seems promising and can be considered either in previously untreated patients when a collection is present and not properly drained percutaneously or after failure of other endoscopic treatments. Mo1566 Utility of Double Balloon Enteroscopy in Patients With Surgically Altered Bowel Anatomy After Bariatric Surgery Shabnam Sarker, Shajan Peter, Ivan Jovanovic, Helmut Neumann, Monkemuller Klaus* Basil I Hirschowitz Endoscopic Center of Excellence, University of Alabama, Birmingham, AL Background: Endoscopic investigation of the gastrointestinal (GI) luminal and pancreatobiliary tracts in patients with surgically-altered GI anatomy after bariatric surgery is challenging and often impossible. The advent of balloon-assisted enteroscopy (BAE) has increased our ability to navigate through the surgically altered bowel. Despite the existence of BAE since more than a decade there is few data available on it potential utility for evaluation post-obesity-surgery patients. Aims: To evaluate the diagnostic yield, success and complications rates of double-balloon enteroscopy (DBE) in consecutive patients with GI problems necessitating endoscopic evaluation. Materials and Methods: Single-center, observational, cohort study of consecutive patients with post-obesity-surgery undergoing DBE during a 24-months period. Patients’ demographics, procedure indications, findings, endoscopic interventions, and post-procedural recovery data were recorded. Results: A total of 435 DBE were performed at our institution during the 24-months study period. Sixty-five patients (14.9%) with post-obesity surgery were evaluated using DBE. The types of surgery were: RYGB, gastric sleeve, lap-band. The indications for DBE was obscure GI bleeding (OGIB) (nZ18), ERCP (nZ31), and evaluation of and abdominal pain or diarrhea (nZ10) and placement of direct feeding jejunostomy (nZ6). The excluded stomach could be reached in 87% of patients with Roux-en Y gastric bypass. The overall diagnostic yield of DBE-ERCP was 68% (stones, nZ7, sphincter stenosis, nZ6, bile leak, nZ4, bile duct stricture, nZ4, failed ERCP, nZ10). The yield of DBE for abdominal pain was 40% (nZ4: gastric erosions, gastro-gastric fistula, anastomotic stricture and erosions) and DBE for obscure GI bleeding (61%). Of the 18 patients with OGIB, 10 had active or a source of bleeding at the time of DBE. In all but one case, the bleeding was occurring at the site of the anastomosis, (hepaticojejunal, jejunojejunal, or gastrojejunal anastomosis). Of these patients 4 patients had arteriovenous malformations at the anastomotic site, 5 had ulcers or erosions, and 2 were bleeding secondary to Dieulafoy’s lesions. A total of one complication (3%) was observed (small bowel perforation after application of argon plasma coagulation to the jejunojejunal anastomosis). One patient had actively bleeding duodenal ulcer at the excluded bulb, which was treated with injection and clip. Conclusions: DBE is a feasible and relatively safe technique to evaluate the small intestines, stomach and biliary tract and associated with reasonably high diagnostic and therapeutic yield in patients with surgically altered bowel anatomy in the setting of bariatric surgery.