Tuesday, 4 October 2011

Venous stents are now available for the treatment of (recurrent) venous stenoses.

The stents used at the CCSVI-Center in Frankfurt are wide enough for the large diameter of veins and ultra-flexible, a prerequisite for long-term patency in veins.

Contrary to arteries, which have thick and rather rigid walls, veins have thin, very flexible walls, which allow the veins to change their shape and diameter according to blood volume and external pressure. Stiff arterial stents, which cannot change their shape together with the vein which accommodates them, might injure the thin wall of the veins, thus increasing the risk for thombosis.