Common Bile Duct Stone Clinical Trial
Official title:
Combined Sphincterotomy and Balloon Dilation (ESBD) Versus Standard Sphincterotomy (ES) in Removing Biliary Stones—a Randomized Controlled Trial
To compare the technique of combined balloon sphincter dilation after an initial sphincterotomy and standard sphincterotomy in the endoscopic removal of large bile duct stones. The investigators hypothesize that combined balloon dilation and sphincterotomy allows for easier stone removal without added morbidities when compared to standard sphincterotomy.
Endoscopic sphincterotomy is a standard technique to enlarge the bile duct opening before stone removal during endoscopic retrograde cholangiopancreatography. However, complete sphincter ablation by endoscopic sphincterotomy is not always possible. Also, due to the tapering end of the distal duct, standard sphincterotomy may not be adequate for removal of particularly large stones. In a retrospective series by Ersoz et al, the addition of balloon dilation after sphincterotomy achieves a high stone clearance rate (89-95%). The investigators postulate that the combination of endoscopic sphincterotomy followed by balloon dilation may allow easier stone retrieval with acceptable complication rate. ;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment
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