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Can a quick ultrasound predict dangerous blood pressure drops during surgery?

NCT ID NCT07742904

Diagnosis 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 trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 03, 2026 · Last updated Sep 11, 2026 · Updated 5 times

Summary

This study is testing whether two different ultrasound measurements can predict a sudden drop in blood pressure that sometimes happens when anesthesia is given. The trial will include adults aged 40 to 70 with intestinal obstruction who are having exploratory abdominal surgery. Researchers will compare the accuracy of measuring the heart's stroke volume versus the collapsibility of the inferior vena cava, both done with a standard ultrasound, to see which better forecasts this complication.

What this could mean

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

Active substance
Transthoracic echocardiography (ultrasound of the heart and major blood vessels) to measure stroke volume and inferior vena cava collapsibility index
What this could lead to
If one method proves more accurate, it could help anesthesiologists better predict and prevent dangerous blood pressure drops during surgery, improving patient safety.
What could go wrong
This is a single-center study with a relatively small number of participants, and results may not apply to all patients or settings. The ultrasound measurements can be technically challenging and may not always be reliable.

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 75 people

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

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Feb 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

Adult patients diagnosed with intestinal obstruction scheduled for exploratory abdominal surgery under general anesthesia at Ain-Shams University Hospitals.

Ages

40 to 70 years

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: * Adult patients with intestinal bowel obstruction undergoing exploratory abdominal surgery under general anesthesia. * Age 40 to 70 years old. * Body Mass Index (BMI) = 18 to 25 kg/m2. * American Society of Anesthesiologists (ASA) physical status grade I or II. Exclusion Criteria: * American Society of Anesthesiologists (ASA) physical status grade \>= III. * Patients in whom the IVC cannot be visualized or patients with poor echogenicity. * Patients with hemodynamic instability. * Patients with vascular, respiratory, or cardiac diseases (e.g., cardiomyopathy, heart valve disease, arrhythmia, or bad exercise tolerance). * Pregnant patients. * Difficult airway or multiple intubatio

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Conditions

The condition(s) this trial relates to.

intestinal obstruction

As listed by the trial registrant

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

Intestinal obstruction Post-induction hypotension

How to take part

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  1. 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 ↗

  2. A doctor treating you

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