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Urine culture may predict fever after kidney stone surgery

NCT ID NCT07514676

Knowledge-focused Sponsor: The First Affiliated Hospital of Guangzhou Medical University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is looking at 150 adults having a specific type of kidney stone surgery called FANS-RIRS. Researchers want to see if the results of a routine urine culture, taken before surgery, can predict whether a patient will develop a fever after the operation. The goal is to help doctors better understand and manage infection risks in these patients.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could help doctors better identify patients at risk of fever after kidney stone surgery, leading to improved infection management.
What could go wrong
This is an observational study, not a treatment trial. It only looks for a link between urine culture results and fever, so it won't directly change care yet.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2025

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population will consist of adult patients with upper urinary tract stones who are scheduled to undergo flexible and navigable suction-assisted retrograde intrarenal surgery (FANS-RIRS) at the study center. All eligible participants will undergo routine preoperative urine routine analysis and urine culture before surgery. In accordance with institutional clinical practice, patients without significant pyuria or clinical evidence of active urinary tract infection will proceed to surgery without waiting for the final urine culture result. Participants will be prospectively enrolled and classified according to their final preoperative urine culture results for outcome analysis.

Ages

18 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult patients aged 18 years or older * Patients diagnosed with upper urinary tract stones and scheduled to undergo FANS-RIRS * Patients who have completed preoperative urine routine analysis and urine culture before surgery * Patients without significant pyuria or clinical evidence of active urinary tract infection at the time of surgery, and therefore managed according to the routine institutional pathway * Patients who are able and willing to provide informed consent Exclusion Criteria: * Age younger than 18 years * Patients with preoperative fever or clinical evidence of active urinary tract infection requiring delayed surgery or additional treatment * Patients with sepsis or severe infection before surgery * Patients undergoing combined or alternative surgical procedures other than FANS-RIRS alone * Patients with missing or unavailable preoperative urine culture results * Patients with incomplete perioperative or postoperative clinical data * Patients who decline to participate or withdraw informed consent

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Conditions

The condition(s) this trial relates to.

urolithiasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Urolithiasis

Contacts and locations

Locations

  • The First Affiliated Hospital of Guangzhou Medical University

    Guangzhou, GuangGong, 510500, China

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