Combined endoscopic large balloon dilation with limited sphincterotomy versus sole sphincterotomy for removal of large or multiple common bile duct stones

Abstract

Background Endoscopic papillary large balloon dilation (EPLBD) after sphincterotomy (EST) was introduced for the removal of large (≥ 10 mm) or multiple bile duct stones. This method combines the advantages of EST and EPLBD by increasing the efficacy of stone extraction while minimizing complications of EST and EPLBD when used alone. This prospective study aimed to compare between EPLBD with prior limited EST and sole sphnicterotomy for extraction of multiple and/or large common bile duct stones. Results Statistical analysis revealed insignificant difference between the studied groups as regards the presence of periamullary diverticulum (23% vs. 19%, P > 0.05) and the use of mechanical lithotripsy (4% vs. 9%, P > 0.05). The rates of overall and initial stone clearance were not significantly different between both groups [94% vs. 90%), P > 0.05; and 84% vs. 78%, P > 0.05, respectively]. The procedure-related pancreatitis and bleeding in EST/EPLBD group were lower compared to EST group (3% vs. 5%, P > 0.05; and 2% vs. 6%, P > 0.05, respectively). None of the studied groups’ patients died or developed procedure-related perforation or cholangitis. Conclusion Endoscopic large balloon dilation with prior limited sphincterotomy is an effective and safe endoscopic technique for removing multiple and/or large CBDSs.