Researchers who analyzed 194,781 kidney stone treatments in Canada over a nearly 20-year period found increasing use of ureteroscopy (URS) and decreasing use of shock wave lithotripsy (SWL), according to findings published online ahead of print in The Journal of Urology.

Michael Ordon, MD, MSc, and colleagues at the University of Toronto demonstrated that, from July 1, 1991 to December 31, 2010, the use of URS increased from 25% to 59% of procedures and the use of SWL decreased from 69% to 34% of procedures.

In addition, results showed a significant decrease in the need for ancillary treatment (from 23% to 15%).

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