Introduction Roux-en-Y gastric bypass (RYGB) surgery imposes anatomic barriers to endoscopic retrograde cholangiopancreatography (ERCP). Potential options for biliary access in these patients include laparoscopic-assisted ERCP or balloon enteroscopy. However, these approaches require specialized equipment and/or operating room personnel and are associated with high rates of failure and adverse events compared to conventional ERCP. A recently described technique, EDGE, is an endoscopic approach which involves accessing the excluded stomach to facilitate ERCP. Objective The objective of this study is to describe the results of EDGE procedures performed in Canada. Methods Data were collected from patient cases who had undergone an EDGE procedure across centers in Canada. All patients had a history of RYGB bariatric surgery. In each procedure, a 20-mm diameter lumen-apposing metal stent (LAMS) was deployed under EUS guidance to allow access from the gastric remnant/proximal jejunum to the excluded stomach. Subsequently, during a separate procedure, a duodenoscope was passed through the LAMS to perform ERCP. Following ERCP, the LAMS was replaced with a pigtail stent or APC was used to facilitate closure of the gastro-jejunal/gastro-gastric fistula. Results The indication for EDGE in the seven included cases was for the treatment of choledocholithiasis (six) or gallstone pancreatitis (one). The technical success rate of the EDGE procedure in these cases was 100%. Clinical success, defined by normalization of bilirubin and symptomatic relief, was observed in all cases. There were no adverse events reported. Conclusion The results of this series support EDGE as a safe and minimally invasive approach to biliary access and therapy in patients with previous RYGB surgery.
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