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Which anesthesia is better for kidney stone removal? new study aims to find out

NCT ID NCT07664384

Knowledge-focused Sponsor: South Valley University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 05, 2026 · Updated 4 times

Summary

This study compares general anesthesia (being fully asleep) with spinal anesthesia (numbing only the lower body) for a type of kidney stone surgery called retrograde intrarenal surgery. Researchers will look at how well the stones are removed, pain levels, and patient satisfaction, especially depending on the size of the stone. The goal is to see if one type of anesthesia works better for certain stone sizes.

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 it works, this could help doctors choose the best anesthesia for kidney stone surgery based on stone size, improving recovery and comfort.
What could go wrong
This is a small, early-stage study with only 80 participants, so results may not apply to everyone. It compares existing methods, not a new treatment.

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

252 people

The number who actually took part.

Started

Apr 2022

Finished

Feb 2025

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

All eligible patients undergoing retrograde intrarenal surgery (RIRS)

Ages

18 years and older

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 (≥18 years) scheduled for elective RIRS for renal stones \<2 cm. * Written informed consent obtained. Exclusion Criteria: * History of previous ureteral surgery or known ureteral stricture. * Multiple or bilateral renal stones requiring staged procedures.

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Conditions

The condition(s) this trial relates to.

nephrolithiasis

As listed by the trial registrant

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

Retrograde intrarenal surgery

Contacts and locations

Locations

  • Qena University

    Qina, Qena Governorate, 83511, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.