Rethinking Stone-free Rates and Surgical Outcomes in Endourology: A Point of View from PEARLS Members.

Panthier, Frédéric; Gauhar, Vineet; Ventimiglia, Eugenio; Kwok, Jia-Lun; Keller, Etienne Xavier; Traxer, Olivier · Eur Urol · 2024

expert_opinion · Level V

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Abstract

There is a lack of consensus on definitions for the success of endourological stone treatments. The zero-fragment rate (residual fragments [RFs] <1 mm) is now considered more accurate than the stone-free rate (RFs ≤4 mm). As stone volume may be adopted as the recommended method for preoperative estimation of the stone burden, the volumetric stone-free rate may be superior to standard linear RF measurements in defining success.

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