关键词: 良性输尿管狭窄, 双根D-J管, 疗效分析

Abstract: Objective To investigate the efficacy of double D-J stents combined with balloon dilatation in the treatment of benign ureteral stricture, and to analyze its safety and effectiveness. Methods A retrospective analysis of 12 patients with benign ureteral stricture perioperative period and follow-up related data. All patients were diagnosed with benign ureteral stricture, and the affected ureter received balloon dilation. Two 4.8F ureteral stents were placed with the indwelling time of 3 months. After the stents were removed, the ureteral stricture was evaluated by ureteroscopy. At 1st, 3rd, and 6th month after stents removed, the ultrasound was used to assess the degree of hydronephrosis. Results Eight were male and 4 were female of the 12 patients, with an average age of 36.3±10.9 years. There were 7 cases of left ureteral stricture and 5 cases of right ureteral stricture. There were 3 cases of upper ureteral stricture, 7 cases of middle ureteral stricture and 2 cases of lower ureteral stricture. The average length of the ureteral stricture was 1.19±0.47 cm. All the stents of twelve patients were removed 3 months after stents insertion. No obvious stricture was observed by urterscopy. All patients showed no increase in hydronephrosis in the first month after the removal of the stents. One patient developed mild hypertrophy in the third month after removal of the stents. In 2 patients, the hydronephrosis was slightly aggravated at the 6th month after removal of the endodontic tube. In the first case, the recurrent hydronephrosis was increased by 0.8 cm compared with the first month. The second and third patients （new case） had an increase in hydronephrosis of 0.3/0.4 cm compared with the third month. Conclusion For benign ureteral stricture, double “D-J” tube placement can make drainage more patency, and can effectively prevent recurrence after ureteral stricture.

Key words: benign ureteral stricture, double root D-J stents, therapeutic effect