Placement of the urethral stent made of shape memory alloy in management of benign prostatic hypertrophy for debilitated patients.

摘要

PURPOSE: A new urethral stent made of shape memory alloy was placed to relieve prostatic obstruction in 17 patients in whom other approaches were contraindicated. MATERIALS AND METHODS: All patients were unable to tolerate intervention with sedation and positioning. Placement of the shape memory alloy stent mounted on a 16F Foley catheter is similar to insertion of a urethral catheter except for the heat-sensitive expansion. RESULTS: Each device was easily implanted with the patient on a flat examination table. There was no migration or incrustation of the shape memory alloy stent during the indwelling period. CONCLUSIONS: Clinical results demonstrate that the shape memory alloy urethral stent might be the only choice for management of prostatic obstruction in debilitated patients.