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Spine surgery study measures brain pressure through the eyes

NCT ID NCT07085949

Knowledge-focused Sponsor: Izmir City Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how different ventilator pressure levels (PEEP) affect the optic nerve sheath diameter, which is a noninvasive way to estimate brain pressure. Researchers measured this in 105 patients undergoing spine surgery while lying face down. The goal was to see if higher or lower ventilator settings change this measurement after surgery.

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 help doctors choose safer ventilator settings during spine surgery to avoid increased brain pressure.
What could go wrong
This is a small, completed observational study, not a treatment trial. The findings may not apply to other surgeries 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

105 people

The number who actually took part.

Started

Jul 2025

Finished

Jan 2026

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

patients undergoing elective

Ages

18 to 65 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: * Age between 18-65 years * ASA I, II, III * Patients undergoing elective vertebral surgery in the prone position Exclusion Criteria: * Patients were defined as having a hemoglobin concentration below 9 g/dL * Congestive heart failure * Uncontrolled hypertension * Severe COPD * Pulmonary edema * Cerebrovascular disease * Those who have had carotid stenosis or surgery * Hemodynamic instability * Pregnant women * Those who did not wish to participate in the study.

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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.

Optic nerve sheath diameter

Contacts and locations

Locations

  • Izmir City Hospital

    Izmir, bayraklı, 35100, Turkey (Türkiye)

More trials for these conditions

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