Objective To investigate the feasibility and clinical effect of interventional treatment for retrograde D-J tube implantation failure of ureteral stenosis.Methods Retrograde placement under cystoscope D-J tube failure of 36 patients with ureteral stricture as the research object,the application of interventional method,puncture renal pelvis ureter after angi-ography,pipe thread with anterograde through ureteral stricture into the bladder,foreign body capture device through the ure-thra into the bladder to pull out the thread to the urethral opening,the godet retrograde placement of drainage catheter,distal to climb is located in the renal pelvis,Push the proximal to the bladder.The changes of creatinine level,degree of renal pel-vis and glomerular filtration rate were observed before and after operation.Results The drainage catheter was successful-ly placed in 36 patients by interventional method.All patients showed increased urine output and improvement of low back pain on the affected side.The improvement of renal pelvis separation and glomerular filtration rate by ultrasound 3 days,3 months and 6 months after operation was statistically significant compared with that before operation(P＜0.05).The im-provement of creatinine in 12 patients with bilateral ureteral stricture 3 days,3 months and 6 months after operation was sta-tistically significant compared with that before operation(P＜0.05).In 24 patients with unilateral ureteral stricture,there was no significant difference in creatinine improvement 3 days,3 months and 6 months after operation compared with that before operation(P＞0.05).Conclusion For patients with ureteral stricture who failed retrograde placement of D-J tube under cystoscope,interventional operation is a minimally invasive,quick recovery and effective method.
Stricture of the ureterInterventional therapyRenal functionSeparation of renal pelvisGlomerular filtration rate
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