Objective To assess the feasibility of intracavitary drainage using three equally-sized double pigtail stents in the treatment of ureteral stricture. Methods Placement of three identical double pigtail stents in ureters for indwelling for 10～12 weeks was carried out in 27 cases of ureteral stricture from March 2000 to June 2003. Results The patients were followed for 2～24 months, with a mean of 18 months. No lumbar distending pain or fever occurred after the removal of the drainage in 26 cases, with the IVP examination indicating patency drainage and no ureteral stricture. Re-examination of IVP 6 months after the surgery found no improvement of hydronephrosis in 1 case. The overall success rate was 96% (26/27). Conclusions Intracavitary drainage using three equally-sized double pigtail stents in the treatment of ureteral stricture is feasible.

Objective To evaluate the efficacy,safety and side effects of 0.5% povidone-iodine in intravesical treatment of interstitial cystitis (IC). Methods Thirty-three cases of IC were divided randomly into group A (18 cases) and group B (15 cases). Group A was treated by intravesical instillation with 50 ml of 0.5% povidone-iodine which was kept in the bladder for 2 hours,once a day for 2 weeks. Group B was treated in the same way,but with 1:5000 furacilin instead. The symptoms,results of cystoscope inspect and adverse effects were investigated. Results All cases were followed up from 8 to 22 months (in average of 18 months). There was significant difference in the scores of clinical symptoms after treatment between two groups (P