NCT07052188

Effect of Preop Stent Duration on SFR and Secondary Intervention in RIRS

Evaluation of the Effect of Preoperative Stenting Duration on Stone-Free Rates and the Need for Secondary Surgical Intervention in Retrograde Intrarenal Surgery

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 210 (estimated)
• Sponsor: Bedreddin Kalyenci · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This study aims to evaluate how placing a stent before surgery (preoperative stenting or passive dilation) affects the success rate of retrograde intrarenal surgery (RIRS), which is performed for kidney stones. Specifically, we will examine whether stenting improves the chance of becoming stone-free after surgery and reduces the need for a second surgical procedure.

Conditions

• Stone, Urinary
• Stone, Kidney

Interventions

Type	Name	Description
PROCEDURE	without any preoperative stenting	Patients will have RIRS without any preoperative stenting.
PROCEDURE	(DJ) stent placed with sedation and undergo RIRS within 2-4 weeks	Patients will have a double-J (DJ) stent placed with sedation and undergo RIRS within 2-4 weeks.
PROCEDURE	Patients will have a DJ stent placed with sedation and undergo RIRS within 4-6 weeks.	Patients will have a DJ stent placed with sedation and undergo RIRS within 4-6 weeks

Timeline

• Start date: 2025-06-26
• Primary completion: 2026-01-31
• Completion: 2026-02-28
• First posted: 2025-07-04
• Last updated: 2025-07-11

Locations

1 site across 1 country: Turkey (Türkiye)