[Malignant occlusion of the bile ducts. Treatment with metallic endoprosthesis: Wallstent vs Strecker's stent].

Stenting is the method of choice to relieve jaundice in the patients with inoperable malignant obstructions of the biliary tree. Over the last fifteen years, thousands of patients have been treated, if endoscopy failed or was unfeasible, with percutaneous transhepatic procedures: despite this wide experience, the role of conventional plastic endoprostheses is still debated, because these devices exhibit major limitations. The main objection to the use of Carey-Coons endoprostheses is the fact that a high rate of early occlusions has always been observed with plastic stents with a wide outer diameter (12-16 F). Metallic stents (self-expandable, Wallstent balloon-expandable Strecker stents) might solve these problems, especially in high-risk patients. The authors report their experience in 50 patients with midterm follow-up, a comparison of the two types of stents and their technical features.