Diseases and conditions

Kidney failure treatment

Ureteral stent placement

In certain cases of urine blockage from the kidney to the bladder, a nephrostomy tube may be used to place a ureteral stent, which is a small metal tube, directly into the ureter (the duct that connects the kidney to the bladder). This treatment will help to relieve the blockage in the ureter by opening the ureter from the inside. One week after placement of the nephrostomy tube, the interventional radiologist can then place the ureteral stent.

Under image guidance (or live x-ray), the physician passes a catheter through the nephrostomy tube until its tip reaches the bladder, then places a stent at that location. It is common for patients to experience irritation and a frequent sensation of the urge to urinate from the stent resting in the bladder, but this discomfort typically subsides in a few days. Stents are generally replaced every six months.