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Updated: Feb 25, 2026

Application of Laparoscopic Ultrasonography in Primary Choledochal Suture during Combined Two-lens Surgery
Published on: March 28, 2025
OUR EXPERIENCE WITH DIAGNOSTIC AND THERAPEUTIC CHOLEDOCHOSCOPY.
K M Harikrishnan1, S Selvaraj2, G Rajgopal3
1Classified Specialist (Surgery) and Surgical Gastroenterologist Command Hospital (SC) Pune 411040.
Flexible choledochoscopy aids common bile duct (CBD) exploration, reducing retained stones. This technique improved stone detection in patients with normal intraoperative cholangiograms, leading to successful outcomes.
Area of Science:
- Gastroenterology
- Surgical Innovation
- Biliary Tract Surgery
Background:
- Common bile duct (CBD) exploration is performed to identify and remove gallstones.
- Retained CBD stones can lead to complications, necessitating further interventions.
- Intraoperative cholangiography may not always detect all CBD stones.
Purpose of the Study:
- To evaluate the utility of flexible choledochoscopy in CBD exploration for suspected stones.
- To assess the impact of choledochoscopy on the incidence of retained CBD stones.
Main Methods:
- Flexible choledochoscopy was employed in 16 patients undergoing CBD exploration.
- Patients had suspected CBD stones, with some having normal intraoperative cholangiograms.
- Postoperative T-tube cholangiograms and clinical follow-up were conducted.
Main Results:
- Choledochoscopy identified CBD stones in 4 patients with previously normal intraoperative cholangiograms.
- All 16 patients had normal T-tube cholangiograms between postoperative days 10-14.
- No patients experienced symptoms of retained stones during 6-19 months of follow-up.
Conclusions:
- Flexible choledochoscopy is a valuable tool for enhancing the detection of CBD stones during exploration.
- Its use may significantly reduce the incidence of retained CBD stones.
- This technique improves diagnostic accuracy and patient outcomes in biliary surgery.
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