Hidden vein in the thigh could be a lifesaver for emergency IV access
NCT ID NCT04922606
First seen Jul 20, 2026 · Last updated Jul 21, 2026 · Updated 1 time
Summary
This study uses ultrasound to examine the great saphenous vein in the upper inner thigh of emergency department patients and staff. The goal is to see if this vein is a reliable and easy-to-find spot for placing an IV when standard sites on the arm or hand are not available. By mapping the vein's location and size in a broad group of people, researchers hope to give clinicians a new, potentially life-saving option for emergency care.
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 successful, this could establish a reliable, easy-to-find site for emergency IV access, potentially saving lives when standard sites fail.
- What could go wrong
- This is an observational anatomy study, not a test of clinical outcomes. The vein may not be suitable in all patients, and real-world emergency use may differ from ultrasound mapping.
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Contacts and locations
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Locations
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Mayo Clinic in Rochester
Rochester, Minnesota, 55905, United States