Retrograde balloon dilatation for the management of upper-pole ureteropelvic junction obstruction in an incomplete duplicated collecting system

Abstract

  We performed retrograde balloon dilatation (RBD) for the management of upper-pole primary ureteropelvic junction obstruction (UPJO) in an incomplete duplicated collecting system. A 19-year-old woman presented at our hospital with the chief complaints of fever and left back pain. Computerized tomography (CT) revealed left UPJO of the upper-pole with a left incomplete duplicated system. Retrograde pyelography (RP) revealed left UPJO of the upper-pole in the incomplete duplicated system. RBD was performed transurethrally under general anesthesia using a ureteral balloon catheter. After RBD, the hydronephrosis of the left upper-pole fully resolved, and the patient has been free from pyelonephritis for 2 years postoperatively.