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Updated: Oct 16, 2025

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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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Self-expandable metallic stent placement for malignant biliary stricture using a novel device delivery system
Tomoaki Matsumori1, Norimitsu Uza1, Masahiro Shiokawa1
1Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Summary
This study demonstrates the effective use of a new self-expandable metallic stent delivery system for malignant biliary strictures. The novel device facilitates precise stent placement, improving outcomes for patients with bile duct blockages.
Area of Science:
- Gastroenterology
- Interventional Endoscopy
- Oncology
Background:
- Malignant biliary strictures cause significant morbidity and mortality.
- Current stent placement techniques can be challenging, especially with novel devices.
- Effective palliation is crucial for improving quality of life.
Purpose of the Study:
- To evaluate the feasibility and safety of a novel delivery system for self-expandable metallic stents.
- To assess the efficacy of this system in achieving successful stent deployment for malignant biliary strictures.
Main Methods:
- A video demonstrates the step-by-step procedure of self-expandable metallic stent placement.
- A novel device delivery system was utilized for precise stent navigation and deployment.
- The procedure was performed in patients with confirmed malignant biliary strictures.
Main Results:
- Successful stent deployment was achieved in all cases using the novel delivery system.
- The delivery system allowed for accurate positioning and secure anchoring of the stent.
- No immediate procedural complications were reported.
Conclusions:
- The novel delivery system is a safe and effective tool for self-expandable metallic stent placement in malignant biliary strictures.
- This technique offers a promising approach for palliation in patients with biliary obstruction.
- Further studies are warranted to assess long-term outcomes.
Keywords:
SEMS, self-expandable metallic stent
