Re: Guido Giusti, Silvia Proietti, Moises E. Rodríguez-Socarrás, et al. Simultaneous Bilateral Endoscopic Surgery (SBES) for Patients with Bilateral Upper Tract Urolithiasis: Technique and Outcomes. Eur Urol 2018;74:810-5 (European Urology)

We read with interest the study by Giusti et al. [1] regarding the outcomes for 27 patients with bilateral renal stones undergoing simultaneous bilateral endoscopic surgery (SBES). The authors conclude that SBES is a safe and effective procedure associated with minimal morbidity. We believe that the authors should be commended for their preliminary data focused on a very specific topic that is gaining increasing attention in the literature [2]. However, the significance of their findings should be considered in the context of the study limitations.