Clinical Research Directory

MIRABEGRON AND UAS OUTCOMES DURING RIRS

The aim of this study is to evaluate whether there is a difference in the passage rate of the ureteral access sheath between patients who used mirabegron (a beta-3 receptor agonist) for overactive bladder and those who underwent retrograde intrarenal surgery for kidney stones, and those who did not use mirabegron. Considering that beta-3 receptors in the smooth muscle of the ureter cause relaxation in the ureter, the hypothesis that the passage rate of the access sheath increases in those using mirabegron, thus facilitating access to kidney stones and improving surgical success, will be investigated.

Alpha-Blockers Prior to Ureteral Access Sheath Placement in Flexible Ureteroscopy: A Randomized Prospective Study

This study aims to evaluate whether the use of alpha-blockers before flexible ureterorenolithotripsy facilitates the passage of the ureteral access sheath. The trial will enroll adult patients diagnosed with kidney stones who are scheduled for flexible ureteroscopy. Participants will be randomly assigned to receive or not receive alpha-blockers for seven days before surgery. The primary outcome is the rate of successful sheath placement without the need for a second procedure. Secondary outcomes include the incidence of ureteral injuries and the need for additional surgical interventions. The goal is to improve surgical efficiency and patient outcomes in the treatment of kidney stones.