Failed Retrograde Cholangiopancreatography (ERCP) Stone Extraction: Surgical Interference

Assessment of the differences in stone size and the largest CBD diameter before and after stenting in one or two sessions. Stone clearance and complications were also determined with the ERCP, and factors associated with complete clearance were evaluated in patients with difficult CBD stones (a large \[≥ 20 mm\] or multiple \[≥ 3 sized ≥ 15 mm\] CBD stones). And also compared the outcomes with conventional procedure of open surgery.