Clinical Research Directory

Impact of Forced Diuresis on the Residual Fragment Rate After Flexible Ureteroscopy for Management of Renal Stones

Sponsor: Ain Shams University

Summary

This randomized controlled clinical trial evaluated whether furosemide-assisted forced diuresis during flexible ureteroscopy reduced the residual fragment rate and improved the stone-free rate after flexible ureteroscopy for management of medium sized renal stones measuring up to 30 millimeters. Adult patients undergoing flexible ureteroscopy for renal stones were randomized into two parallel groups: an experimental group that received intravenous furosemide during the procedure and a control group that received standard perioperative and postoperative care without furosemide. Stone-free status and residual fragments were assessed using non-contrast computed tomography performed four weeks after the procedure, and residual fragments were classified by fragment size. Secondary outcomes included operative time, length of hospital stay, postoperative complications, total urine output in the first 24 hours, and the need for additional treatments for significant residual stones.

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