No Advantage of Expanded Polytetrafluoroethylene and Fluorinated Ethylene Propylene-Covered Stents over Uncovered Nitinol Stents for Percutaneous Palliation of Malignant Infrahilar Biliary Obstruction: Results of a Single-Center Prospective Randomized Trial

摘要

Purpose: To prove that covered stents are more efficacious than uncovered stents regarding patency, safety, enabling of chemotherapy, and survival in percutaneous palliation of malignant infrahilar biliary obstruction.