A stent is a hollow, flexible plastic tube that is specially designed to be placed in the ureter. The ureter is the natural tube that carries urine from the kidney to the bladder. The length of stents used in adult patients varies from 24 to 30 cm. Ureteral stenting is a new and effective method for treating recurrent urethral strictures.

Ureteral stenosis is a common clinical complication. Patients may experience ureteral stenosis in many different diseases or after interventions in the urinary tract. Ureteral stent placement under fluoroscopy is one of the effective methods to resolve the stenosis, often performed in combination with surgery to repair or widen the ureter.

JJ Stent (Double-J) is a 24-30cm long flexible plastic hollow tube specially designed to be placed in the ureter. Placing the Stent under fluoroscopy is an effective method to treat ureteral stenosis, helping to restore urinary tract circulation.

Transureteral stenting under digital subtraction angiography is usually performed after failed endoscopic retrograde ureteral stenting. Percutaneous nephrostomy drainage should be placed 2-7 days before percutaneous ureteral stenting.