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Tilt test: does Head-Down position fool anesthesia monitors?

NCT ID NCT07467200

Knowledge-focused Sponsor: Sakarya University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study watches 60 women having laparoscopic hysterectomy to see if the head-down (Trendelenburg) position changes how brain monitors measure anesthesia depth. Researchers will record brain waves and oxygen levels before and after tilting. No extra treatments are given—just careful observation to help doctors better understand these monitors during surgery.

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 60 people

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

Started

May 2026

Expected to finish

Dec 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 consists of adult female patients undergoing elective laparoscopic hysterectomy under general anesthesia at a tertiary care university-affiliated hospital. Eligible patients will be recruited consecutively among those scheduled for surgery who meet the inclusion criteria and provide written informed consent.

Ages

18 to 65 years

Sex

Female participants only

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: * Female patients aged 18-65 years * American Society of Anesthesiologists (ASA) physical status I-III * Scheduled for elective laparoscopic hysterectomy under general anesthesia * Ability to provide written informed consent Exclusion Criteria: * History of neurological disease (e.g., stroke, epilepsy) * Known cerebrovascular disease, glaucoma, or retinal disease * Severe cardiac or pulmonary disease * Contraindication to near-infrared spectroscopy sensor placement * Obesity (Body Mass Index \> 35 kg/m²)

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As listed by the trial registrant

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

Laparoscopic hysterectomy

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

  • Sakarya University Training and Research Hospital, Department of Anesthesiology and Reanimation

    RECRUITING

    Sakarya, Turkey (Türkiye)

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