J Korean Radiol Soc.  1993 Oct;29(5):935-943.

Percutaneous balloon dilatation for transplant ureteral strictures

• Kim JC
• Banner MP

Abstract

We report 10 kidney-allografted patients treated for 11 ureteral strictures with standard endourologic ballon catheter dilatation and internal stenting between August 1979. They have been followed until 2 to 140 months (mean 42). We compared and alalyzed the 6 successful strictures(54%) and 5 unsuccessful strictures. There was no statistically significant difference of demographic, clinical and radiologic interventional techniques between two groups. But there was slightly higher success rate in abruptly narrowed shorter fibrotic strictures in ureteroneocystostomy sites than smoothly tapered longer ones in other sites of the ureter. Longterm stenting by the transplantation team with cystoscopic removal of internal ureteral stents by urologists resulted in 3 cases of stent occlusion, encrustation or fracture. Exact early diagnosis of ureteral structure with continued close follow up and proper radiologic interventional procedure with optimal stenting period may increase the success rate and still provide an alternative to surgery.

MeSH Terms

Catheters
Constriction, Pathologic*
Dilatation*
Early Diagnosis
Follow-Up Studies
Humans
Stents
Ureter*