Impact of Ureteral Access Sheath Size During Flexible Ureteroscopy Using a 6 o'clock Working Channel: A Prospective Multicenter Pilot Study.
The impact of ureteral access sheath (UAS) size on surgical outcomes in flexible ureteroscopy (f-URS) remains controversial, particularly with modern suction-assisted techniques and evolving definitions of stone-free status. The objective of this study was to evaluate the effect of UAS size on stone-free rate (SFR), op...