[Modified implantation of a Wallstent in bile duct obstruction]

The self-expanding Wallstents are increasingly applied in malignant biliary obstructions. The deployment of the stent from the covering membrane is a relatively complicated mechanism susceptible to trouble. Sometimes the deployment of the stent from the catheter fails and the incompletely deployed stent has to be removed and rejected. In a total of 9 patients with malignant bile duct obstruction 11 deployed stents were inserted in a technical modification over a 10 F sheath. The proposed technique has the advantages of a reduction of costs and of an exact placement of the stent.