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A simple Warm-Up before surgery may help tissues breathe better

NCT ID NCT07702487

Knowledge-focused Sponsor: Beyzanur Aydoğdu Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 14, 2026 · Last updated Jul 15, 2026 · Updated 1 time

Summary

This observational study looks at whether briefly warming adults before elective kidney removal surgery (nephrectomy) can lower blood lactate levels — a sign of how well tissues are getting oxygen — and improve recovery. Researchers will compare patients who receive routine prewarming with those who do not, tracking lactate, blood pressure, heart rate, ICU stay, and complications. No extra tests or procedures are added beyond standard care.

What this could mean

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

Active substance
preoperative active warming using a device applied to the body surface for 10-15 minutes before anesthesia
What this could lead to
If prewarming is linked to lower lactate and fewer complications, it could support a simple, low-cost change to routine surgical care.
What could go wrong
This is an observational study, so it cannot prove cause and effect. The prewarming decision is made by the care team, not randomly assigned, which may bias results.

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 128 people

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

Started

Nov 2025

Expected to finish

Nov 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

Adult patients aged 18-90 years, ASA I-III, undergoing elective nephrectomy (open or laparoscopic) at the study site, enrolled consecutively over a one-year period.

Ages

18 to 90 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: * Scheduled for elective nephrectomy * Adults aged 18-90 years * ASA (American Society of Anesthesiologists) physical status classification I-III * Signed informed consent form Exclusion Criteria: * Emergency nephrectomy * Concurrent additional major surgical procedure planned in the same session * Age under 18 or over 90 years * ASA physical status classification IV or higher * Incomplete preoperative records (missing pre- or postoperative measurement of at least one primary outcome variable)

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Conditions

The condition(s) this trial relates to.

Hyperlactatemia Postoperative Complications

As listed by the trial registrant

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

Hyperlactatemia Intraoperative hypothermia Nephrectomy / methods

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization

    RECRUITING

    Istanbul, Sisli, 34384, Turkey (Türkiye)

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