Related Experiment Video
Updated: Jul 23, 2026

Laparoscopic Common Bile Duct Exploration in Patients with a Previous History of Biliary Tract Surgery
Published on: February 10, 2023
Simple laparoscopic ultrasound technique for prevention of bile duct injuries
1Department of Surgery, University of Hawaii at Manoa and Kuakini Medical Center, Honolulu. j.machi@surgedinc.org
Background:
Bile duct injuries are serious complications of laparoscopic cholecystectomy. Laparoscopic ultrasonography (LUS) has been utilized over the last several years to screen for bile duct calculi and to delineate biliary anatomy. We have found a simple LUS scanning technique that can be useful for preventing bile duct injuries.
Method:
After initial scanning for screening, laparoscopic dissection is continued, isolating the cystic duct. If necessary, scanning can be performed to assure the location of the cystic duct before clipping. After clips are applied to the cystic duct, prior to its incision or transection, LUS is repeated to examine the cystic and bile ducts.
Results:
This postclipping study can confirm that the clips are applied to the cystic duct and that the hepatic and common bile ducts are intact without occlusion.
Conclusion:
This additional LUS scanning maneuver is simple and quick and may help prevent bile duct injuries.

