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Deep Vein Thrombosis


Deep vein thrombosis occurs when a blood clot (thrombus) forms in one or more of the deep veins in your body. This usually occurs in the legs.

What is a Deep Vein Thrombosis (DVT)?

Deep vein thrombosis occurs when a blood clot (thrombus) forms in one or more of the deep veins in your body. This usually occurs in the legs but can also occur less frequent in the upper arm veins.


There are different causes for deep vein thrombosis. It can occur if you are immobile, such as after a surgery or accident, or when you are confined to bed. Another cause of DVT can be specific inherited blood conditions causing your blood to clot without reason.


Deep vein thrombosis can be very serious because blood clots in your veins can break loose, travel through your bloodstream and lodge in your lungs, blocking blood flow. This is called a pulmonary embolism.

Deep vein thrombosis DVT condition

What are the symptoms of deep vein thrombosis?


Only about half of the people who have DVT have signs and symptoms. If you do have symptoms, the symptoms occur in the leg affected by the deep vein clot and may include:

  • Swelling of the leg or along a vein in the leg

  • Pain or tenderness in the leg, which you may feel only when standing or walking

  • Increased warmth in the area of the leg that’s swollen or painful

  • Red or discolored skin on the leg


What imaging is done to diagnose deep vein thrombosis?


Ultrasound or ultrasonography, specifically Duplex color ultrasonography is a medical imaging technique that uses high frequency sound waves and their echoes to look at the flow of blood in the veins. The technique is similar to the echolocation used by bats, whales and dolphins, as well as SONAR used by submarines.


It is the standard imaging test used to diagnose DVT. It can detect blockages or blood clots in the deep veins.


What intervention/ treatment can be performed for deep vein thrombosis?

Treatment usually includes anticoagulants and compression stockings. If the clot dose not decrease in size or continues to grow, an interventional radiologist can perform a catheter directed thrombolysis and thrombectomy to remove the clot.


What intervention/ treatment does CardioCare offer for deep vein thrombosis?

At CardioCare, our interventional radiologists perform catheter-directed thrombolysis and thrombectomy.  

If the Patient is at high risk of more thrombus to dislodge to the lung we can insert a retractable umbrella like filter in the big vein going to the lung which will prevent further thromboembolic events to the lung – a so called “vena cava filter”, that can be removed once the thrombotic risk is gone.

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