title: Transrenal ureteral occlusion using a detachable balloon.
abstract: Percutaneous transrenal ureteral occlusion using a detachable balloon filled with silicone was performed in 20 patients. The main indications were palliation of large urinary fistulas and as a treatment of last resort for severe dysuria in patients with advanced pelvic malignancies. In 6 patients the contralateral kidney was rendered nonfunctional to obviate the need for bilateral nephrostomy. Due to frequent obstruction of the tube, ureteral blockage in 3 became insufficient. Two dislocated balloons were extracted percutaneously and replaced. In order to achieve effective interruption of urinary flow down the ureter, well-functioning external nephrostomy drainage is necessary.
mesh_terms: D000328:Adult; D000368:Aged; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010166:Palliative Care; D010386:Pelvic Neoplasms / Q000150:complications; D014513:Ureter; D014515:Ureteral Diseases / Q000628:therapy*; D014547:Urinary Diversion / Q000379:methods*; D014548:Urinary Fistula / Q000628:therapy*; D014719:Vesicovaginal Fistula / Q000628:therapy