[Percutaneous placement of a double-J endoprosthesis using a descending approach in malignant pelvic tumor threatening the permeability of the upper urinary tract. Apropos of 10 patients].

The percutaneous route should be used for ureteral endoprosthesis placement, whenever ascending retrograde passage is not accessible. The authors review the experience gained from attending 10 patients with advance-stage pelvic malignancies and describe the technique used. Emphasis is placed on care needed when selecting the proper route of entry, as well as on advantages presented by J x 2 large gauge probes developed from new biocompatible polymers. This surgical technique may, some times, ensure comfortable survival in selected, premedicated patients under local anesthesia, in whom it is well-tolerated, and yields low complication rates.