Safety and Efficacy of URS Stents
Safety and Efficacy of URS Stents
A prospective observational study aimed to assess the efficacy and safety of Allium ureteral
 stent long-term indwelling in the treatment of ureteral stricture.
Inclusion Criteria:

 1. Benign diseases: UPJ, ischemic injury caused by surgical separation, endoscopic
 surgery injury, heat injury by laser lithotripsy, infection (chronic inflammation,
 tuberculosis), peri-ureteral fibrosis caused by endometriosis, ureteral anastomotic
 stenosis after renal transplantation, ureteral fistula, multiple polyps;

 2. Malignant diseases: ureteral anastomotic stricture after urinary diversion, stricture
 caused by compression of abdominal and/or pelvic tumors, stricture caused by urinary
 tract tumors, stricture caused by radiotherapy for colon or cervical cancer, ureteral
 fistula

 Exclusion Criteria:

 1. Combine with hypertonic neurogenic bladder (except for patients with long-term
 indwelling catheter)

 2. Colon resection surgery patients -