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Simple ultrasound test may predict dangerous blood pressure drop during brain surgery

NCT ID NCT07399093

Knowledge-focused Sponsor: Ain Shams 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether a simple ultrasound test before surgery can predict if a patient will have dangerously low blood pressure after receiving anesthesia for brain surgery. Researchers will measure the size and flexibility of a major vein and artery using ultrasound in 36 adults. The goal is to find a reliable way to identify patients at risk, so doctors can take steps to prevent complications.

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 36 people

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

Started

Jan 2024

Expected to finish

Mar 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.

Who is studied

This prospective cohort study will be conducted on 40 patients undergoing craniotomy surgeries at Ain Shams University Hospitals.

Ages

18 to 40 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: * Age from 18 to 40 years. * Both sexes. * Body Mass Index\< 40 kg/m². * American Society of Anesthesiologists (ASA) physical status I, II. * Fasted according to the ASA guidelines: 2 hours for clear fluids, 6 hours after light meal, 8 hours after a full meal with high calorie or fat content. * Scheduled for elective craniotomy surgeries before induction of general anesthesia. Exclusion Criteria: * Current or recent pregnancy (within 3 months). * Pre-existing cardiac disease or hypertension. * On medications affecting blood pressure \[Beta-blockers (BBs) and calcium channel blockers (CCBs)\] . * Refusing to undergo the study.

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As listed by the trial registrant

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

Caval aorta index Collapsibility index Craniotomy General anesthesia Induction Inferior vena cava

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

    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

  • Ain Shams University Hospitals

    RECRUITING

    Cairo, 11591, Egypt

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