Could a simple ultrasound trick improve emergency fluid checks?
NCT ID NCT07676968
First seen Jun 30, 2026 · Last updated Jul 01, 2026 · Updated 1 time
Summary
This study looks at three different ways to use ultrasound to measure the inferior vena cava, a large vein that helps doctors assess a patient's fluid status in emergencies. The standard method uses a view from under the ribs, but this can be blocked by obesity or other factors. Researchers are testing whether two alternative views—through the liver or from the side—are reliable substitutes. About 900 adults needing fluid assessment will be enrolled to see if these alternative methods give the same results as the standard approach.
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 the alternative ultrasound windows prove reliable, doctors may have more flexible options for assessing fluid status in patients where the standard view is difficult.
- What could go wrong
- This is an observational study measuring agreement between methods, not testing a treatment. The results may show that the alternatives are not interchangeable, limiting their use.
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
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About 900 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Aug 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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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 (≥18 years) requiring ultrasonographic assessment of intravascular volume status in the emergency departments, intensive care units, and other acute care settings.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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 (≥18 years) requiring ultrasonographic assessment of intravascular volume status will be consecutively enrolled. Exclusion Criteria: * Pregnancy, refusal to participate, and inability to obtain any IVC image via the SC approach.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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.
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