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Could your period change brain pressure during surgery?

NCT ID NCT07539831

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

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study looks at whether the phase of a woman's menstrual cycle affects the optic nerve sheath diameter, a measure linked to brain pressure, during laparoscopic gynecologic surgery. Researchers will compare women in the follicular and luteal phases, also tracking nausea and cognitive function after surgery. The goal is to understand if hormonal shifts influence surgical outcomes, but this is an observational study with no treatment being tested.

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 understand how hormonal changes affect brain pressure during surgery, potentially improving care for women.
What could go wrong
This is an early observational study, not a treatment trial. It may find no clear link, and results may not apply to all women 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.

Participants

About 110 people

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

Started

Apr 2026

Expected to finish

Apr 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

Women aged 18 to 45 years with ASA physical status I-II who are scheduled for elective laparoscopic gynecologic surgery at Konya City Hospital. Participants will be observed according to menstrual cycle phase (follicular or luteal phase).

Ages

18 to 45 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: * Female patients aged 18 to 45 years * Scheduled for elective laparoscopic gynecologic surgery * Menstrual cycle in the follicular phase or luteal phase * American Society of Anesthesiologists (ASA) physical status I-II Exclusion Criteria: * Irregular menstrual cycle (e.g., polycystic ovary syndrome, early menopause, hypothalamic amenorrhea) * Pregnancy or breastfeeding * Neurological disease associated with intracranial pressure changes * Glaucoma or another eye disease associated with high intraocular pressure * Previous brain surgery * Uncontrolled hypertension or severe cardiovascular disease

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Conditions

The condition(s) this trial relates to.

Postoperative Nausea and Vomiting

As listed by the trial registrant

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

Menstrual cycle Optic nerve sheath diameter Postoperative nausea and vomiting

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

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Contacts and locations

Locations

  • Konya City Hospital

    RECRUITING

    Konya, Turkey (Türkiye)

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