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Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
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Optimal stent placement strategy for malignant hilar biliary obstruction: a large multicenter parallel study.
Ming-Xing Xia1, Xiao-Bo Cai2, Yang-Lin Pan3
1Department of Endoscopy, Eastern Hepatobiliary Hospital, Second Military Medical University, Yangpu District, Shanghai, China.
Gastrointestinal Endoscopy
|December 28, 2019
Summary
Dual metal stent placement offers superior outcomes for malignant hilar biliary obstruction (MHBO). This endoscopic approach provides higher clinical success and longer stent patency compared to other methods.
Area of Science:
- Gastroenterology
- Oncology
- Interventional Endoscopy
Background:
- Malignant hilar biliary obstruction (MHBO) presents significant management challenges.
- Optimal endoscopic strategies for MHBO lack universal consensus.
- This study compares four major endoscopic stenting modalities.
Purpose of the Study:
- To determine the optimal endoscopic stenting strategy for malignant hilar biliary obstruction.
- To compare the efficacy and safety of metal versus plastic stents, and bilateral versus unilateral placement.
Main Methods:
- A retrospective review of 1239 patients with advanced MHBO undergoing endoscopic stenting.
- Identification and classification of 633 eligible patients into four groups: bilateral metal stent placement (BMS), unilateral metal stent placement (UMS), bilateral plastic stent placement (BPS), and unilateral plastic stent placement (UPS).
- Propensity score matching (PSM) was used to compare outcomes.
Main Results:
- After PSM, BMS demonstrated the highest clinical success rate (98.9%) and longest symptom-free stent patency (9.6 months).
- BMS also showed the lowest postprocedural cholangitis rate (8.0%) and fewest required interventions.
- Metal stents were superior to plastic stents, and bilateral placement outperformed unilateral placement across key outcome parameters, including clinical success, stent patency, and overall survival.
Conclusions:
- Dual metal stent placement is the preferred palliative option for inoperable MHBO when technically feasible.
- Unilateral metal stent placement serves as a viable second-line option.
