Deep vein thrombosis overview
Editors-in-Chief: C. Michael Gibson, M.S., M.D. Associate Editor-In-Chief: Ujjwal Rastogi, MBBS [1]
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Overview
Deep-vein thrombosis (also known as deep-venous thrombosis or DVT and colloquially as economy class syndrome) is the formation of a blood clot ("thrombus") in a deep vein.
DVT of the lower extremity is subdivided into two categories:
- Distal (calf) vein thrombosis, in which thrombi remain confined to the deep calf veins
- Proximal vein thrombosis, in which thrombosis involves the popliteal, femoral, or iliac veins
It commonly affect the veins of the leg, such as the femoral vein or the popliteal vein or the deep veins of the pelvis. Occasionally the veins of the arm are also affected (known as Paget-Schrötter disease). Thrombophlebitis is swelling (inflammation) of a vein caused by a blood clot. There is a significant risk, when a thrombus embolize and travel to the lungs, causing pulmonary embolism.