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Updated: Jun 8, 2026

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Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Duplex scanning to evaluate the effect of compression on venous reflux
Summary
Duplex ultrasound effectively measures venous reflux reduction in the great saphenous vein (GSV) due to leg compression. This study confirms compression
Area of Science:
- Vascular Surgery
- Medical Imaging
- Hemodynamics
Background:
- Severe great saphenous vein (GSV) incompetence causes venous reflux.
- Understanding the impact of compression therapy on venous reflux is crucial.
Purpose of the Study:
- To evaluate Duplex ultrasound's utility in quantifying venous reflux.
- To assess how leg compression affects venous reflux in GSV incompetence.
Main Methods:
- Twelve patients with severe GSV incompetence were studied.
- Duplex ultrasound measured reflux in the GSV with and without leg compression.
- Elastic and inelastic compression materials were applied at varying pressures.
Main Results:
- Increasing leg compression progressively reduced GSV reflux.
- Inelastic compression completely abolished reflux at 86 mmHg.
- Elastic compression achieved similar results but was less tolerated.
Conclusions:
- Duplex ultrasound is valuable for assessing venous reflux changes.
- Leg compression significantly reduces GSV reflux, improving hemodynamics.
- This highlights a key mechanism of compression therapy's effectiveness.
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