A Prospective, Randomized Multicenter Trial Comparing DoubleLayer and Polyethylene Stents for Malignant Distal Common Bile Duct Strictures

Abstract

These results show that DoubleLayer stents have a longer patency period than PE stents. Patients who received PE stents had a higher risk of stent occlusion (relative risk 3.05; 95 % CI, 1.57 - 5.89) before death than DLS patients.