Treating ureteric obstruction secondary to gynecological disease assisted with retrograde ureteroscopic stenting.

OBJECTIVE: To analyze the technical experience and clinical efficacy of ureteroscopic treatment of middle and lower ureteral obstruction due to gynecological disease. PATIENTS AND METHODS: From January 2007 to December 2015, 58 cases of ureteral obstruction were collected in 55 patients caused by gynecological factors. 19 cases had the history of gynecological iatrogenic injury and 39 cases were secondary to gynecological tumors. Different situations of luminal stenosis included obliteration, suture penetration, transection and unrecognized ureteral orifice. The ureteral stents were retrogradely placed ureteroscopically assisted by holmium laser or transurethral plasma kinetic resection. RESULTS: A total of 51 cases of operations were completed successfully by one-stage ureteroscopic stenting with the mean operation time of 33.5 min. No severe complications were observed. The serum creatinine two weeks after operation had a significant decline compared with that of preoperation (p<0.05). The mean follow-up time was 5.3 months. 44 cases with successful stent placement showed nice improvement of hydronephrosis by ultrasound. CONCLUSIONS: Ureteroscopic stent placement with the use of holmium laser or plasma kinetic resection device, has good clinical effects, which provides a relatively simple and minimal-invasive treatment option to resolve middle and lower ureteral obstruction caused by complex gynecological factors.