Caval (IVC) Filter Placements

IVC is the abbreviation for inferior vena cava. The IVC is a large vein that runs through the middle of the body. Veins carry oxygen-poor blood and waste products to the heart from all over the body. The heart re-oxygenates the blood, and arteries carry it back again.

If blood thickens and clumps together, blood clots form (called DVT or deep vein thrombosis). This is most common in the lower legs or thighs. A blood clot can damage some of the tiny valves in the vein that force blood up towards the heart. The resulting leak forms a pool of blood in the leg (common after being immobile for a long time).

If the DVT breaks free from the vein, it can travel up the body and to the lungs where it will stick in a blood vessel there. If a blockage is formed, it is called a pulmonary embolism. Shortness of breath or even sudden death can occur with a pulmonary embolism.

An IVC filter is designed to prevent a pulmonary embolism by filtering the blood and catching clots from moving to the lungs or the heart. The IVC filter is a small, wired device placed in the IVC vein. It is placed through a small incision in the neck or groin with a catheter that is advanced to the chosen area of deployment. The filter is then expanded so it can attach to the wall of the vein to remain permanently. The filter can be removed eventually, but this is rare.

The physicians at Stanislaus Cardiology can discuss your IVC filter options at your next appointment.