Guidewire-assisted transpancreatic sphincterotomy for difficult biliary cannulation: a prospective randomized controlled trial.

摘要

GATS compared with NKS increases biliary cannulation rate and requires less cannulation time during difficult biliary access. This technique is not associated with an increased risk for complications. It seems to be an effective and safe alternative for biliary access during difficult endoscopic retrograde cholangiopancreatography.