Comparison of Flexible and Navigable Suction Ureteral Access Sheath (FANS) and traditional ureteral access sheath in retrograde intrarenal surgery for renal calculi: a randomized controlled trial
Retrograde intrarenal surgery (RIRS) is an established treatment for renal calculi < 2 cm. Flexible and Navigable Suction Ureteral Access Sheath (FANS-UAS) has been developed to facilitate active evacuation of stone fragments while potentially improving intraoperative irrigation dynamics. This randomized controll...