This study aims to compare the efficacy and outcomes between double guidewire technique (DGT), trans pancreatic sphincterotomy (TPS) as well as precut and fistulotomy techniques in ERCP in patients defined as having difficult biliary cannulation.
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Comparative Study Between Different Interventional Techniques for Difficult Common Bile Duct Cannulation In Endoscopic Retrograde Cholangio-pancreatography
Timeframe: Baseline