Clinical trial Recruiting at 1 site Observational Ages 18 and up

Impact of urine culture timing on outcomes after kidney stone surgery

Official title: The Effect of Preoperative Culture Timing on Postoperative Outcomes of Retrograde Intrarenal Surgery

Run by Namik Kemal University · NCT06723327 · Data updated 2026-11-12

This study looks at whether taking urine samples two weeks before kidney stone surgery helps prevent infections better than taking them closer to the surgery date.

More Urolithiasis trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment1000 (estimated)
SponsorNamik Kemal University
Academic / other
Locations1 site (Tekirdağ)
StatusRecruiting
StartedDecember 1, 2024
Main results expectedDecember 31, 2025
Study endsDecember 31, 2025
Registry record updatedDecember 12, 2024
Trial IDNCT06723327 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults over 18 years old who have a sterile urine culture taken two weeks prior to their scheduled retrograde intrarenal surgery.

Probably not a fit

Patients under 18 years of age, those with positive urine cultures, or individuals with renal anomalies or a solitary kidney may not benefit from this study.

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 investigates the timing of urine culture collection prior to retrograde intrarenal surgery (RIRC) and its effect on postoperative outcomes, particularly the rate of infections. It aims to determine the optimal timing for urine cultures to ensure they are sterile before surgery, as infections can lead to severe complications. The study compares urine cultures taken two weeks before surgery with those taken closer to the operation date to assess the risk of postoperative infections.

Why it matters

Potential benefit: If successful, this study could lead to improved guidelines for urine culture timing, reducing the risk of postoperative infections and complications for patients undergoing kidney stone surgery.

How similar studies have gone: While there are guidelines regarding urine culture timing, this specific approach to determining the optimal timing has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients over 18 years of age
* Patients who had a urine culture taken 2 weeks before the operation and reported as sterile

Exclusion Criteria:

* Patients under 18 years of age
* Patients without sufficient data
* Patients with a urine culture more than 2 weeks before retrograde intrarenal -surgery
* Patients with a positive urine culture before retrograde intrarenal surgery
* Patients with renal anatomic anomalies
* Patients with a solitary (single) kidney

Where it's running

  • Tekirdag Namık Kemal University
    Tekirdağ, Turkey (Türkiye)
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.