Factors predisposing to urinary tract infection after J ureteral stent insertion.

Purpose: We determined the group of patients most likely to have bacterial infection or colonization of J stents inserted to relieve ureteral obstruction.

Materials And Methods: Midstream urine from 250 consecutive patients who required indwelling J stent insertion obtained before stent insertion and on the day of stent removal was analyzed by microbiological testing. At stent removal 3 to 5 cm.