What is ureteral access sheath?

A ureteral access sheath is basically a means of getting up and down the ureter multiple times while avoiding the need for reintroduction of guidewires to do so. Sheaths range between 10F and 16F in outer diameter.

Does a ureteral access sheath facilitate Ureteroscopy?

Conclusions: Routine use of a ureteral access sheath appears to facilitate semirigid and flexible ureteroscopy by decreasing operative time and costs, allowing direct visualization of ureteroscope insertion with simple ureteral re-entry and assisting renal and ureteral access with minimal associated morbidity.

Is it safe to use a ureteral access sheath in an Unstented ureter?

To conclude, these data suggest that the use of UAS during RIRS in an unstented ureter is safe and is not associated with increased risk for ureteral stricture formation. Furthermore, the use of a wider UAS was not found to be associated with higher complications rate.

What is a kidney sheath?

Amplatz Type Renal Sheaths are firm renal sheaths designed to allow smooth passage of surgical instruments into the nephrostomy tract.

What is Ureteroscopy surgery?

Ureteroscopy is a procedure to address kidney stones, and involves the passage of a small telescope, called a ureteroscope, through the urethra and bladder and up the ureter to the point where the stone is located.

Where is the ureter located in the kidney?

The ureter is a tube that carries urine from the kidney to the urinary bladder. There are two ureters, one attached to each kidney. The upper half of the ureter is located in the abdomen and the lower half is located in the pelvic area.

What is a sheath urology?

A ureteral access sheath (UAS) enables the urologist to repeatedly pass the ureteroscope into the upper ureter and kidney, without a need to pass the ureteroscope over a working wire.