Clinical Trial: Intravesical Aminophylline to Facilitate Ureteroscopic Access in Children With Distal Ureteral Stones.

U.S., June 2 -- ClinicalTrials.gov registry received information related to the study (NCT07617896) titled 'Intravesical Aminophylline to Facilitate Ureteroscopic Access in Children With Distal Ureteral Stones.' on May 25.

Brief Summary: This study will evaluate whether intravesical aminophylline can facilitate semi-rigid ureteroscopic access in children with distal ureteral stones when the first gentle attempt to enter the ureter is unsuccessful.

Children scheduled for semi-rigid ureteroscopy for distal ureteral stones will first undergo the standard gentle attempt to pass the ureteroscope through the ureteric orifice and intramural ureter. If access is achieved, the child will continue standard treatment and will not be randomized. If a...