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Eye-Opening clue: ultrasound of the optic nerve may predict spinal headache after C-Section

NCT ID NCT07729449

Knowledge-focused Sponsor: Ordu University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 27, 2026 · Last updated Jul 28, 2026 · Updated 1 time

Summary

This study tests whether measuring the optic nerve sheath diameter with ultrasound can predict post-dural puncture headache (PDPH) in women undergoing elective cesarean delivery under spinal anesthesia. Researchers will also monitor brain oxygen levels to see if drops in oxygen relate to headache risk. If a reliable cutoff value is found, it could help doctors identify high-risk patients early and take preventive steps.

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 give doctors a simple, non-invasive way to predict who is at risk for post-dural puncture headache after spinal anesthesia, allowing earlier preventive care.
What could go wrong
This is a small, early-stage study with 44 participants, so the findings may not apply to all patients. The predictive value of the measurements may be too low to be clinically useful.

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 44 people

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

Started

Jun 2026

Expected to finish

Jun 2027

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

Pregnant women aged 18-40 years who are scheduled to undergo elective cesarean section under spinal anesthesia at the tertiary care hospital.

Ages

18 to 40 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: * Patients aged 18-40 years, * American Society of Anesthesiologists (ASA) physical status classification of II or III, * Beyond 37 weeks of gestation, * Elective cesarean delivery, * Provided written informed consent Exclusion Criteria: * Patients undergoing emergency cesarean delivery * Presence of preoperative anxiety \[State-Trait Anxiety Inventory (STAI) - I\] score \> 30) * Presence of preoperative anemia (Hemoglobin \< 11 g/dL), * History of hypertension, gestational hypertension, hyperthyroidism, or preeclampsia/eclampsia, * Presence of fetal and/or placental anomalies, * Known neurological, psychiatric, cardiovascular, or muscular diseases, * Chronic headache, * Active ocular disease or optic nerve damage, * Allergies to local anesthetics or other medications, * Requirement for intraoperative general anesthesia, * Presence of contraindications to neuraxial anesthesia or conversion to intraoperative general anesthesia, * Multiple puncture attempts during spinal anesthesia administration, * Development of postpartum hemorrhage.

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Conditions

The condition(s) this trial relates to.

hypotensive disorder intracranial hypotension Post-Dural Puncture Headache

As listed by the trial registrant

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

Post-dural puncture headache Spinal anesthetics causing adverse effects in therapeutic use

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

  • Name: Ordu University Training and Research Hospital

    RECRUITING

    Ordu, Altinordu, 52200, Turkey (Türkiye)

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