Suction vs Conventional Ureteral Access Sheaths in Kidney Stone Surgery
Official title: Comparison of Conventional and Suction Ureteral Access Sheaths Used During Retrograde Intrarenal Surgery
Run by Antalya Health Sciences University · NCT07866209 · Data updated 2026-11-12
This study tests whether using a suction ureteral access sheath during RIRS helps adults clear stones more often and potentially reduces operative time and infections compared with a conventional sheath.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 160 (estimated) |
| Sponsor | Antalya Health Sciences University Academic / other |
| Locations | 1 site (Antalya, Muratpasa) |
| Status | Recruiting |
| Started | March 18, 2026 |
| Main results expected | March 30, 2027 |
| Study ends | May 1, 2027 |
| Registry record updated | October 27, 2026 |
| Trial ID | NCT07866209 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18 and older with kidney stones scheduled for RIRS who can provide informed consent.
✕Probably not a fit
Patients whose stones are not fully cleared or who have complications unrelated to sheath type may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study compares two ureteral access sheath approaches used during retrograde intrarenal surgery for kidney stones. Researchers will collect routine surgical data, including operative time, stone clearance, and any postoperative complications. Follow-up imaging will assess stone-free status. The aim is to see if the suction sheath offers advantages over the conventional sheath in real-world clinical practice.
Why it matters
Potential benefit: If successful, suction sheaths could improve stone clearance and reduce infection risks during RIRS.
How similar studies have gone: Previous studies with similar approaches have shown mixed results; this study adds real-world observational data for comparison.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18 years or older * Kidney stones scheduled for retrograde intrarenal surgery (RIRS) * Provision of written informed consent Exclusion Criteria: * Active untreated urinary tract infection * Uncorrected bleeding disorder or anticoagulant therapy that cannot be discontinued * Pregnancy * Anatomical abnormalities of the urinary tract (e.g., ureteral stricture, horseshoe kidney) * Failure to place a ureteral access sheath * Incomplete follow-up data
Where it's running
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University of Health Sciences Antalya Training and Research Hospital
Antalya, Muratpasa, Turkey (Türkiye) Recruiting
Study contacts
- Study coordinator: Baran Arslan
- Email: drbrnarsln@gmail.com
- Phone: +90 5532487485
Similar studies
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This study tests if listening to an audio version of the consent form, read by a real urologist or by an AI-cloned voice, helps adults in Turkey understand their ureteroscopy or RIRS consent better than the written form alone.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.