Simple ultrasound may spot hidden leg swelling cause
NCT ID NCT06180122
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study explores whether a vascular ultrasound can help diagnose May-Thurner syndrome, a condition where a vein in the pelvis is compressed, causing left leg swelling. Researchers will measure the vein's diameter in 40 adults with unexplained swelling and compare results to healthy individuals. The goal is to see if ultrasound is a reliable, non-invasive diagnostic tool.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Duplex ultrasound
- What this could lead to
- If successful, this could provide a non-invasive way to diagnose May-Thurner syndrome, reducing the need for more invasive tests.
- What could go wrong
- This is a small pilot study with only 40 participants, so results may not apply to everyone. The technique may not be accurate enough to replace current diagnostic methods.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Imperial College Healthcare NHS Trust
London, Greater London, W6 8RF, United Kingdom
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