Related Experiment Video
Updated: Jan 23, 2026

Laparoscopic Common Bile Duct Exploration Followed by Primary Suture Using a Modified Bile Duct Incision
Published on: May 2, 2025
Electrohydraulic lithotripsy and rendezvous nasal endoscopic cholangiography for common bile duct stone: A case
Koichi Kimura1, Kensuke Kudo1, Tomoharu Yoshizumi2
1Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka 814-0175, Japan.
Background:
In patients with large stones in the common bile duct (CBD), advanced treatment modalities are generally needed. Here, we present an interesting case of a huge CBD stone treated with electrohydraulic lithotripsy (EHL) by the percutaneous approach and rendezvous endoscopic retrograde cholangiography (ERC) using a nasal endoscope.
Case Summary:
A 91-year-old woman underwent ERC for a symptomatic large CBD stone with a diameter of 50 mm. She was referred to our institution after the failure of lithotomy by ERC, and after undergoing percutaneous transhepatic biliary drainage. We attempted to fragment the stone by transhepatic cholangioscopy using EHL. However, the stones were too large and partly soft clay-like for lithotripsy. Next, we attempted lithotomy with ERC and cholangioscopy by the rendezvous technique using a nasal endoscope and achieved complete lithotomy. No complication was observed at the end of this procedure.
Conclusion:
Cholangioscopy by rendezvous technique using a nasal endoscope is a feasible and safe endoscopic method for removing huge CBD stones.
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04:02Laparoscopic Cholecystectomy with Indocyanine Green Fluorescence: Choledochoscopic Stone Extraction and Primary Duct Suture
Published on: November 25, 2025
07:36Laparoscopic Common Bile Duct Exploration in Patients with a Previous History of Biliary Tract Surgery
Published on: February 10, 2023
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