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Chin sensor may spot hidden danger during surgery

NCT ID NCT07399275

Knowledge-focused Sponsor: Bursa Sevket Yilmaz Training and Research Hospital 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study watches 150 adults during major surgery to see if a non-invasive light sensor on the chin can detect early signs of poor blood flow to tissues. Researchers compare this sensor to standard blood tests that measure lactate, a marker of oxygen shortage. The goal is to find a faster, safer way to spot problems without changing how doctors normally care for patients.

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.

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Feb 2027

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

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 consists of adult patients aged 18 years and older undergoing major surgical procedures under general anesthesia at a single tertiary care center. Major surgery includes abdominal, neurosurgical, and major orthopedic procedures associated with a risk of significant blood loss and/or impaired tissue perfusion, requiring invasive arterial blood pressure monitoring and hourly arterial blood gas analysis as part of routine clinical care. All participants are enrolled prospectively and monitored intraoperatively without any alteration to standard anesthetic or surgical management.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Adults aged 18 years and older * Scheduled for major surgical procedures under general anesthesia * Major surgery defined as procedures associated with a risk of significant blood loss and/or impaired tissue perfusion, requiring invasive arterial blood pressure monitoring and hourly arterial blood gas analysis * Planned intraoperative arterial catheter placement as part of routine clinical care * Ability to provide written informed consent Exclusion Criteria: * Age younger than 18 years * Refusal or inability to provide informed consent * Absence of invasive arterial blood pressure monitoring * Known pregnancy * Severe peripheral vascular disease affecting upper extremities * Anatomical abnormalities or skin conditions preventing placement of NIRS sensors on the submental or thenar regions * Emergency surgery requiring immediate intervention * Preoperative severe metabolic acidosis (arterial pH \< 7.20)

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Conditions

The condition(s) this trial relates to.

Hyperlactatemia ischemic disease vascular occlusion disorder

As listed by the trial registrant

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

Lactate blood increase Major surgery Microcirculatory dysfunction Microcirculatory status Microvascular circulation Near-infrared spectroscopy Tissue hypoperfusion Vascular occlusion test

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

  • University of Health Sciences, Bursa Yuksek Ihtisas Training and Research Hospital

    Bursa, Turkey (Türkiye)

More trials for these conditions

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