Healthy volunteers help doctors understand vein behavior during breathing
NCT ID NCT01644760
First seen Nov 19, 2025 · Last updated May 16, 2026 · Updated 25 times
Summary
This study looked at 52 healthy adults to see how much the inferior vena cava (a large vein) collapses when they breathe. Researchers used ultrasound to measure the vein's diameter during inhaling and exhaling. The goal was to find a breathing-related measurement that best predicts a 50% collapse of the vein. This is a knowledge-gathering study, not a treatment.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Locations
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CHU de Nîmes - Hôpital Universitaire Carémeau
Nîmes, 30029, France
Conditions
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