Anti-reflux Mucosal Ablation Therapy Randomized Sham Control Trial for Gastroesophageal Reflux Disease

Patients are instructed to fast for 6 hours pre-procedurally, which are performed under intravenous propofol sedation. Retroflexion endoscopy to visualize the cardia is performed, followed by mucosa markings with straight-fire APC catheter (ERBE Electromedizin, Tübingen, Germany) in forced coagulation mode (VIO300D, ERBE Electromedizin, Tübingen, Germany, 20W). The marking site at 1-cm and 2-cm distal to squamocolumnar junction at anterior-posterior and lesser curvature site, respectively, sparing the greater curvature site of cardia, is done. After marking, mucosal ablation (forced coagulation mode, 1L/min, 80W) is performed at marking site in a hoarse-shoe shape. Adequate ablation depth is defined as reaching the submucosal layer with blackish discolored tissue with carbonization

Patients are instructed to fast for 6 hours pre-procedurally, which are performed under intravenous propofol sedation. Retroflexion endoscopy to visualize the cardia is performed. Using the straight-fire APC catheter to touch the marking sites similar to the treatment group without electrocauterization is performed.