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April, 2026
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Julie Cardoso: What Happens to Venous Valves When a Blood Clot Forms?
Mar 16, 2026, 17:39

Julie Cardoso: What Happens to Venous Valves When a Blood Clot Forms?

Julie Cardoso, Owner and Executive Director of Independent Diagnostic Testing Facility at Universal Ultrasound Diagnostics, posted on LinkedIn:

“What happens to venous valves when a blood clot forms?

Venous valves normally maintain unidirectional flow and work with respiratory pressure changes to create phasic venous flow.

With a Deep Vein Thrombosis (DVT), a thrombus can immobilize or damage valves, preventing them from closing properly.

This leads to:

  • Loss of phasic flow
  • Continuous or dampened velocity
  • Blunted augmentation response

Assessing valves with PW Doppler, including augmentation and observing flow return to baseline is crucial.

If flow doesn’t return, it signals proximal obstruction and abnormal valve function, helping guide diagnosis and management.

Learn More with us at Universal U on Saturday, April 25.”

Julie Cardoso

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