To explore the simple, reliable and rapid ureteroneocystostomy in renal transplantation.

The clinical data of 320 cases of recipients who performed renal transplantion in Weifang People's Hospital from March 1995 to January 2016 was retrospectively analyzed. All the recipients were divided into two groups according to the ureteroneocystostomy: conventional group (75 cases, submucosal tunnel type) and modified group (245 cases, modified drag-and-drop catheter for ureteroneocystostomy). The time of ureteroneocystostomy and urinary system complications within 2 years after renal transplantion between the two groups were compared by t test and Chi-squared test, respectively. P<0.05 was considered statistically significant.

All patients were followed up for an average of (6.5 ± 0.6) years (0.5 to 8.0 years) up to January 2016. The time of ureteroneocystostomy of conventional group and modified group were (10.0±1.3) min and (4.0±1.2) min, the difference was statistically significant (t= 6.573, P<0.05). The incidence of terminal ureteral stricture, urinary extravasation, urine leakage, urinary tract infection and vesicoureteral reflux between the two groups were 6.67% (5/75) and 1.22% (3/245), 6.67% (5/75) and 0.82% (2/245), 2.67% (2/75) and 0.82% (2/245), 2.67% (2/75) and 0.82% (2/245), 9.33%(7/75) and 0, the difference was statistically significant (χ²=4.955, 9.185, 1.593, 1.593 and 23.378, P all <0.05). Ureter papilla ( about 2 cm long) could be found in all the recipients in 6 to 12 months after renal transplantion proved by bladder endoscopy, which bonded integratedly with surrounding tissues.

Compared with submucosal tunnel type, the modified ureteroneocystostomy without double J tubes had simpler surgical method, shorter anastomosis time, more effective anti-reflux mechanism and fewer urinary system complications, which was worth of being generalized.