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Radiologic Management of Venous Thromboembolism

Deep vein thrombosis is caused by blood clots in the veins in the legs. These can travel to the lungs, causing pulmonary embolism (PE). These conditions are referred to as venous thromboembolism (VTE).

VTE is usually treated with anticoagulants (medicines that decrease blood clotting). It may also be appropriate to put a permanent or retrievable device within the inferior vena cava (IVC) to stop the clot from going into the lungs. A retrievable IVC is usually appropriate when the use of anticoagulants may cause too high a risk of bleeding.

A permanent IVC may be appropriate. In cases of acute VTE with a clot in calf veins below the knee (which has a lower risk for PE), observation with serial imaging tests is usually appropriate. Anticoagulation may also be appropriate if there is severe pain with the calf vein clot or if the patient is bedridden or has an underlying malignancy.

In individuals who have chronic VTE, anticoagulation is usually appropriate. In select patients who develop high pressures within the lung arteries due to chronic VTE and PE, an operation to remove the clots from the lungs or a procedure to open the artery in the lungs by inflating a balloon may be appropriate. A permanent or retrievable IVC may also be appropriate. For more information, see the IVC Filters page.

In people at high risk for VTE (for example, those with major trauma), anticoagulation and using a device that automatically compresses the legs to keep blood flow moving is usually appropriate. Retrievable IVC or surveillance may also be appropriate.

This page was reviewed on December, 15, 2021

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