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Does anesthesia flow affect eye pressure? new study investigates

NCT ID NCT04407715

Knowledge-focused Sponsor: Bursa Yuksek Ihtisas Training and Research 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 80 adults having open gynecologic surgery to see if the amount of anesthesia gas affects the size of the nerve at the back of the eye. Researchers measured the optic nerve sheath using ultrasound before and during surgery with either minimal or high gas flow. The goal was to understand how different anesthesia techniques might influence eye pressure, but this was an observational study, not a treatment.

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

80 people

The number who actually took part.

Started

Apr 2019

Finished

Dec 2019

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.

Ages

18 to 65 years

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: * Aged 18-65 years * ASA I-II * Who underwent laparotomic gynecological surgery Exclusion Criteria: * Patients with obstructive pulmonary disease * Patients with decompensated diabetes, those with a fasting period of more than 12 hours -Acute alcohol intoxication * Chronic alcohol use * Who refuse to participate in the study * Who are not cooperative, do not speak Turkish * Who had known eye disease (glaucoma, retinal detachment), had a previous history of eye surgery, * Increased intracranial pressure findings (intracranial lesion, previous cerebrovascular diseases * Body mass index of \> 40kg/m2 * ASA \> III

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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

  • University of Health Sciences Bursa Yüksek İhtisas Training and Research Hospital

    Bursa, Turkey (Türkiye)

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