What is ureteroscopy?

Ureteroscopy (URS) is used to treat stones in the kidney and ureter. URS involves passing a very small telescope, called a ureteroscope, into the bladder, up the ureter and into the kidney. Rigid telescopes are used for stones in the lower part of the ureter near the bladder. Flexible telescopes are used to treat stones in the upper ureter and kidney.

The ureteroscopy lets the urologist see the stone without making an incision (cut). General anaesthesia keeps you at ease during the URS procedure. Once the urologist sees the stone with the ureteroscope, a small, basket-like device grabs smaller stones and removes them. If a stone is too large to remove in one piece, it can be broken into smaller pieces with a laser.

When is ureteroscopy used?

Most often ureteroscopy is used for stones in the ureter, especially for stones closest to the bladder, in the lower half of the ureter. lt is the most common treatment of lower ureteral stones. For stones in the kidney, shock wave lithotripsy (SWL) is the most common treatment. SWL treatment cannot be used in everyone. For patients who are pregnant, morbidly obese, or have a blood clotting disorder, ureteroscopy is a good choice. For very large or oddly shaped stones, or stones that are very hard, other treatments such as percutaneous nephrolithotomy or, rarely, open surgery may be needed.

Will I be hospitalized?

This surgery can both be an outpatient procedure or involves staying overnight in hospital depending on circumstances.

What are the risks?

There is a small chance of infection, bleeding, or injury to the ureter. lf the ureter is too small, a stent may be left in place for one or two weeks to keep the ureter open and then the procedure is performed at a later date.

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