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Updated: Jul 13, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Management of occluded biliary Wallstents
T C Tham1, D L Carr-Locke, J Vandervoort
1Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA.
Plastic stent insertion is the most cost-effective endoscopic management for occluded Wallstents, showing similar efficacy to other methods. This approach offers a favorable outcome for patients with malignant biliary strictures.
Area of Science:
- Gastroenterology
- Interventional Endoscopy
- Oncology
Background:
- Wallstents are used for malignant biliary strictures but can occlude.
- Optimal management for Wallstent occlusion lacks consensus.
Purpose of the Study:
- To evaluate the efficacy of endoscopic management for biliary Wallstent occlusion.
- To determine the most cost-effective treatment for occluded Wallstents.
Main Methods:
- Multicenter retrospective study of patients with biliary Wallstent occlusion.
- Analysis of endoscopic management including Wallstent re-insertion, plastic stent insertion, and mechanical cleaning.
Main Results:
- Endoscopic management was successful in 98% of 44 occlusions across 38 patients.
- Plastic stent insertion demonstrated a median patency of 90 days and survival of 98 days.
- Plastic stent insertion was identified as the most cost-effective management option.
Conclusions:
- All evaluated endoscopic methods are effective for managing occluded Wallstents.
- Plastic stent insertion is the most cost-effective treatment for occluded Wallstents.
- Further research may explore long-term outcomes and patient selection for each method.
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