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Clinical Features and Outcomes of Endoscopic Treatment for Stones in Stemware-Shaped Common Bile Ducts: A Multicenter
Jee Young Han1,2, Don Haeng Lee1,3, Seok Jeong1,3
1Department of Internal Medicine, Inha University Hospital, Incheon, Korea.
Insights
Endoscopic treatment of common bile duct (CBD) stones in stemware-shaped anatomy is challenging, with a low initial success rate. Careful pre-procedure assessment is crucial for managing these difficult CBD stones.
Area of Science:
- Gastroenterology
- Hepatobiliary Surgery
- Endoscopic Procedures
Background:
- Anatomical variations in the biliary tree, specifically stemware-shaped common bile ducts (CBDs), present unique challenges for the removal of difficult gallstones.
- Effective management strategies for CBD stones in these challenging anatomical configurations are crucial for patient outcomes.
Purpose of the Study:
- To evaluate the clinical characteristics and outcomes of endoscopic treatment for gallstones located within stemware-shaped CBDs.
- To identify factors influencing the success and complications of these procedures.
Main Methods:
- Retrospective analysis of 34 patients with stemware-shaped CBDs and gallstones treated between January 2008 and December 2012.
- First-line endoscopic treatment was assessed, with second-line procedures including percutaneous or direct peroral cholangioscopy, endoscopic retrograde biliary drainage, or surgery for treatment failures.
Main Results:
- The overall success rate for the initial endoscopic procedure was 41.2%.
- Mechanical lithotripsy was necessary in 38.2% of patients, and 58.8% required a second-line intervention.
- Complications occurred in 14.7% of patients, with no procedure-related mortality.
Conclusions:
- Endoscopic management of gallstones in stemware-shaped CBDs is associated with significant challenges and a lower success rate.
- Thorough pre-procedural evaluation is essential for optimizing treatment strategies and patient selection for these difficult cases.
Background/Aims:
Various anatomical features of the biliary tree affect ability to remove difficult common bile duct (CBD) stones. In this study, we evaluated the clinical characteristics and outcomes of the endoscopic treatment of stones in stemware-shaped CBDs.
Methods:
Thirty-four patients with a stone and a stemware-shaped CBD who were treated at different tertiary referral centers from January 2008 to December 2012 were studied retrospectively. When stone removal failed, percutaneous or direct peroral cholangioscopic lithotripsy, endoscopic retrograde biliary drainage, or surgery was performed as a second-line procedure.
Results:
The overall success rate of the first-line procedure was 41.2%. Five of the 34 patients (14.7%) experienced procedure-related complications. No procedure-related mortality occurred. Mechanical lithotripsy was required to completely remove stones in 13 patients (38.2%). Conversion to a second-line procedure was required in 20 patients (58.8%). Mechanical lithotripsy was needed in 75% and 66.7% of those with a stone size of <1 cm or ≥1 cm, respectively. Stone recurrence occurred in two patients (9.1%) after 6 months and 27 months, respectively.
Conclusions:
The endoscopic treatment of stones in a stemware-shaped CBD is challenging. The careful assessment of difficult CBD stones is required before endoscopic procedures.
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