Standard Versus Flexible and Navigable Suction Ureteral Access Sheath in Pediatric Flexible Ureterorenoscopy for Renal Stones < 2 cm

This randomized controlled trial aims to compare the efficacy and safety of a Flexible and Navigable Suction Ureteral Access Sheath (FANS) versus a standard ureteral access sheath during flexible ureterorenoscopy (FURS) in pediatric patients with renal stones less than 2 cm. The study will evaluate stone-free rates. operative time. intraoperative parameters. operative and postoperative complication and the need for any auxiliary procedures. Sixty pediatric patients will be randomly allocated into two equal groups and treated at the Urology Department, Tanta University.