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Eye ultrasound could spot brain pressure risk during keyhole surgery

NCT ID NCT06209034

Knowledge-focused Sponsor: Kocaeli University 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether ultrasound measurements of the optic nerve sheath (the lining around the eye nerve) can detect increased brain pressure during laparoscopic (keyhole) surgery. Researchers measured the nerve sheath diameter in 55 adults undergoing laparoscopic surgery. The goal was to see if this simple, non-invasive test could replace more invasive methods for monitoring intracranial pressure.

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 could lead to a simple, non-invasive way to monitor brain pressure during laparoscopic surgeries.
What could go wrong
This is a small, completed observational study with only 55 participants. The findings may not apply to all patients or surgeries.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

55 people

The number who actually took part.

Started

Dec 2023

Finished

Sep 2024

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.

Ages

18 to 75 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: * 18-75 aged patients * American Society of Anesthesiologists Classification (ASA) I-II-III patients * Patients undergoing laparoscopic surgery Exclusion Criteria: * American Society of Anesthesiologists Classification (ASA) IV-V patients * Those with known ophthalmic disease * Those with a history of ophthalmic surgery * Those with any known neurological disorder * History of intracranial hypertension * Patients who will undergo open abdominal surgery

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Conditions

The condition(s) this trial relates to.

intracranial hypertension

As listed by the trial registrant

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

Intracranial pressure increase Optic nerve sheath diameter

Contacts and locations

Locations

  • Kocaeli University

    Kocaeli, Turkey (Türkiye)

  • Sevim Cesur

    Kocaeli, Turkey (Türkiye)

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