Biliary Plus Pancreatic Stent vs Pancreatic Stent Alone After Endoscopic Papillectomy

This is a prospective, multicenter, open-label, randomized controlled trial designed to evaluate the safety and efficacy of biliary stent placement combined with pancreatic stent placement versus pancreatic stent alone in patients undergoing endoscopic papillectomy (EP) for duodenal ampullary adenoma. The primary objective is to compare the overall incidence of post-procedural complications between the two groups. A total of 190 patients will be enrolled and randomized 1:1 to receive either pancreatic stent alone (PS group) or combined biliary and pancreatic stents (PBS group).