Related Experiment Video
Updated: Jul 13, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Transnasal bile duct catheterisation after endoscopic sphincterotomy: method for biliary drainage, perfusion, and
Abstract:
We describe a method for leaving a catheter in the common bile duct for several days, even weeks, after endoscopic sphincterotomy. This provides reliable biliary drainage, and permits perfusion of the duct with simple fluids or solvents. It reduces the need for instrumental stone extraction and for repeated endoscopy and cholangiography to check whether stones have passed, since transnasal cholangiograms can be performed simply and repeatedly without discomfort.
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