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Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Covered versus uncovered wallstent for malignant extrahepatic biliary obstruction: a cohort comparative analysis
Do Hyun Park1, Myung-Hwan Kim, Jung Sik Choi
1Department of Internal Medicine, Soon Chun Hyang University Cheonan Hospital, Cheonan, Korea.
Summary
Covered Wallstents did not significantly improve stent patency in malignant biliary obstruction compared to uncovered Wallstents. Stent migration was more frequent with covered stents, suggesting no clear benefit for this patient group.
Area of Science:
- Gastroenterology
- Interventional Endoscopy
- Oncology
Background:
- Malignant extrahepatic biliary obstruction presents challenges in maintaining stent patency.
- Wallstents are commonly used for biliary drainage, with covered and uncovered variations available.
Purpose of the Study:
- To compare the efficacy of covered versus uncovered Wallstents in patients with malignant extrahepatic biliary obstruction.
- To determine if covered Wallstents offer prolonged stent patency and reduced complications.
Main Methods:
- Prospective evaluation of 98 patients receiving covered Wallstents.
- Retrospective comparison with 108 patients receiving uncovered Wallstents.
- Analysis of stent patency and procedure-related complications.
Main Results:
- Mean stent patency was similar between covered (148.9 days) and uncovered (143.5 days) Wallstents.
- No significant difference in cumulative stent patency or pancreatitis incidence.
- Higher incidence of stent migration in the covered Wallstent group (6.1% vs 0%).
Conclusions:
- Covered Wallstents may not offer superior stent patency compared to uncovered Wallstents for malignant biliary obstruction.
- Increased stent migration risk with covered Wallstents warrants consideration.