What are the different types of ureteral stents?

What are the different types of ureteral stents?

TYPES OF URETERAL METAL STENTS The self-expandable, the balloon expandable, and the themoexpandable shape memory stents, the covered stents, and the lately introduced all metal double pigtail stent.

What is a ureteral stent called?

A ureteric stent (also called a J-J stent or double-J stent) is a thin, flexible plastic tube which is curled at both ends to avoid damaging the kidney and urinary bladder and to prevent it from dislocating. The stent is placed so that its upper end is in the kidney and its lower end is in the urinary bladder.

What is Nephroureteral stent?

A retrograde nephroureteral stent (RNUS) is a catheter placed in patients who have undergone surgical treatment, such as cystectomy with ileal conduit formation in which it exits from the conduit and extends retrograde to the renal pelvis.

Are there different sizes of ureteral stents?

We will use the height measurement criteria used by Lee et al in their study. Patients less than 5’2″ will receive a 22 cm stent, 5’3″-5’7″ will get a 24 cm stent, 5’8″-5’10” will get a 26 cm stent, 5’11” to 6’1″ will get a 28 cm stent, and all patients greater than 6’2″ will receive a 30 cm stent.

What is JJ stent insertion?

Ureteral Stenting (Double J Stent, JJ Stent) Ureteral stenting (also known as double J stent) is the procedure to place a thin, flexible plastic tube that is temporarily in the ureter to help urine drain from the kidney into the bladder in the case of a blockage. The ureters carry urine from the kidneys to the bladder.

What is a JJ stent made of?

All ureteral stents are made of polyurethane or silicone; metallic stents are not used in ureters. A double-J ureteral stent is completely internal and has a “pigtail” at each end (Fig. 35-3A). Its proximal coil is situated in the renal pelvis, and its distal coil is situated in the urinary bladder.

Why is it called a JJ stent?

One or both ends of the stent may be coiled to prevent it from moving out of place; this is called a JJ stent, double J stent or pig-tail stent.

Why is DJ stent used?

Ureteral stenting (also known as double J stent) is the procedure to place a thin, flexible plastic tube that is temporarily in the ureter to help urine drain from the kidney into the bladder in the case of a blockage. The ureters carry urine from the kidneys to the bladder.

What is the difference between PCN and PCNU?

PCN tubes divert urine from the kidney into drainage bags, which are cumbersome to care for and potential sources of infection. In contrast, percutaneous nephroureteral (PCNU) tubes by allowing internal drainage can preclude the need for a urine drainage bag.

Why is double J stent used?

Double J stents have been used for more than 25 years and have become a staple of the urological endoscopic armamentarium. They are used mainly for stabilization of the ureter after surgery and to provide drainage through a ureter that may be obstructed, leaking, dysfunctional, or strictured.

When is double J stent used?

How long can a JJ stent stay in?

Your urology doctor should be able to give you an idea of how long they expect the stent to be in place. If your stent is in the correct position it can stay in for up to six months without the need to replace it.

Does urine pass through DJ stent?

To perform nephrostomy, a radiologist inserts a stent (tube) directly into a kidney. The kidney stent drains urine from the kidney into a bag outside of the body, bypassing the ureters and bladder.

What is bilateral PCN?

Percutaneous nephrostomies (PCNs) are used to decompress the obstructed kidney(s). This study aims to identify whether bilateral PCN insertion confers any advantage over unilateral PCN insertion for patients with bilateral ureteric obstruction.

What is PCN used for?

Percutaneous nephrostomy (PCN) is a medical procedure used to treat patients with blockages of the urinary system. The objective of this procedure is to temporarily drain the urine by inserting a nephrostomy catheter through skin into the renal pelvis.

Why is DJ stent removed?

Double-J (DJ) stents are among the basic and commonly used tools in urology. The DJ stent generally needs to be replaced or removed within 6 weeks to 6 months to avoid complications like encrustations, stone formation, fractures and blockades of stents.

What is DJ stent used for?

Ureteral stenting (also known as double J stent) is the procedure to place a thin, flexible plastic tube that is temporarily in the ureter to help urine drain from the kidney into the bladder in the case of a blockage. The ureters carry urine from the kidneys to the bladder. (Each kidney is connected to one ureter.)

Is DJ stent necessary after ureteroscopy?

Conclusion: Routine placement of a ureteral stent is not mandatory in patients without complications after ureteroscopic lithotripsy for impacted ureteral stones.