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Nose surgery blood pressure: how low is too low for the eyes?

NCT ID NCT07832305

NEW Knowledge-focused Sponsor: Hitit 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 21, 2026 · Last updated Sep 21, 2026

Summary

Researchers compare two blood pressure targets during controlled hypotension for nose surgery to see how each affects blood flow in the eye's optic nerve. Sixty adults having elective rhinoplasty receive anesthesia aimed at either a lower or higher mean arterial pressure. The team measures eye pressure and uses detailed scans before and after surgery to track changes in the tiny blood vessels of the optic nerve and retina.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Two different mean arterial pressure targets during general anesthesia
What this could lead to
If one blood pressure target preserves eye blood flow better, it could guide anesthesia practice for nose surgery and other procedures that use controlled hypotension.
What could go wrong
This is a small, single-center study in healthy adults, so the results may not apply to older patients or those with eye or heart conditions. The trial measures blood flow changes, not whether patients actually see better or avoid eye damage.

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

About 60 people

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

Started

Jul 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.

Ages

18 years and older

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 18-50 years * Scheduled for elective rhinoplasty or septorhinoplasty * American Society of Anesthesiologists (ASA) physical status I-II * Willing and able to provide written informed consent Exclusion Criteria: * History of glaucoma, retinal disease, optic neuropathy, or other significant ophthalmologic disease * Previous ocular surgery * High myopia * Uncontrolled hypertension, diabetes mellitus, or other serious systemic disease * ASA physical status III or higher * Development of severe intraoperative hemodynamic instability * Massive intraoperative bleeding * Inadequate OCTA image quality for analysis * Pregnancy * Refusal to participate or withdrawal of consent

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Conditions

The condition(s) this trial relates to.

anterior ischemic optic neuropathy

As listed by the trial registrant

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

Controlled hypotension for nasal surgeries

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

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Contacts and locations

Locations

  • Hitit university

    RECRUITING

    Çorum, Turkey (Türkiye)

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