Providence, RI—In renal stones smaller than 1.5 cm diameter, ureteroscopic lithotripsy (URS) is associated with superior stone-free rates compared with shock wave lithotripsy (SWL), according to a recent study.
In addition, a comparison of cost effectiveness of the procedures suggests that careful patient stratification and selection may increase the cost effectiveness of SWL, researchers found.
The authors reported superior stone-free rates for renal stones <1.5 cm for URS compared with SWL. Using a modeling system, the authors demonstrated that SWL is as cost effective as URS, if SWL success is as high as 65% to 67% for a single session. The study, presented at the 2014 AUA annual meeting in Orlando, FL, suggested that careful stratification and selection of stone patients might be the key to improving the cost effectiveness of SWL. The study has since been published in the Journal of Endourology (2014; 28:639-43).
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