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Forehead sensor may spot delirium risk in elderly surgery patients

NCT ID NCT07463586

Knowledge-focused Sponsor: Seoul National University Bundang Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This observational study is looking at whether the brain's ability to use oxygen during surgery is linked to postoperative delirium in adults aged 65 and older. Researchers will use a non-invasive forehead sensor to measure brain oxygen levels during routine laparoscopic surgery under general anesthesia. Participants will be checked for delirium for up to three days after surgery. The goal is to see if a reduced oxygen response in the brain can help identify those at higher risk.

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 study could help identify older patients at higher risk for postoperative delirium, allowing for closer monitoring or preventive measures.
What could go wrong
This is a small observational study, not a treatment trial. It can only show an association, not cause and effect. Results may not apply to all surgery types or patient groups.

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 80 people

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

Started

Mar 2026

Expected to finish

May 2028

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

Participants will be recruited from patients scheduled for elective laparoscopic surgery at Seoul National University Bundang Hospital, a tertiary academic medical center in the Republic of Korea. Eligible patients will be identified during routine preoperative evaluation and approached for study participation prior to surgery.

Ages

65 years and older

Sex

Anyone

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: * Patients undergoing elective laparoscopic surgery under general anesthesia * Age 65 years or older Exclusion Criteria: * Diagnosis of dementia or presence of delirium before surgery * Loss of capacity to provide informed consent * Moderate or severe cerebrovascular stenosis diagnosed before surgery * Moderate or severe obstructive or restrictive pulmonary dysfunction identified on preoperative pulmonary function testing * Requirement for supplemental oxygen therapy before surgery * History of neurological disorders (e.g., Parkinson's disease, stroke) or prior brain surgery * Severe hepatic dysfunction (AST or ALT \> 120 IU/L) * Severe renal dysfunction (estimated GFR \< 15 mL/min/1.73 m²) * Persistent severe hemodynamic instability (mean arterial pressure \< 60 mmHg) * Skin conditions preventing placement of the forehead fNIRS sensor * Combined surgical procedures performed concurrently * Planned postoperative admission to the intensive care unit

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Conditions

The condition(s) this trial relates to.

delirium Emergence Delirium

As listed by the trial registrant

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

Cerebral oxygenation Delirium, postoperative

How to take part

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  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

  • Seoul National University Bundang Hospital

    RECRUITING

    Seongnam-si, Gyeonggi-do, 13620, South Korea

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