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How does VNUS closure work?

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Video Overview

How does VNUS closure work? How does VNUS closure work? The goal of therapy in treating chronic venous insufficiency is the keep the blood from running backward down the vein. We formerly used a technique called stripping although the complication rate was relatively high. Chronic venous insufficiency can also be treated using the VNUS catheter. This catheter is placed up the vein and positioned precisely using ultrasound guidance. Once the catheter is in position, the vein is gently heated to approximately 120 degrees centigrade which heats up the inside and the outside of the vein. AS the vein cools off, the vein then collapses down on itself stopping the flow from running backwards and therefore effectively ending the insufficiency which is causing the problems.

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