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Deep vein thrombosis (DVT) is a type of venous thrombosis involving the formation of a blood clot in a deep vein, most commonly in the legs or pelvis. [9] [a] A minority of DVTs occur in the arms. [11] Symptoms can include pain, swelling, redness, and enlarged veins in the affected area, but some DVTs have no symptoms. [1]
In medicine, Homans' sign (sometimes spelled as Homans sign or called dorsiflexion sign) is considered by some physicians to be a sign of deep vein thrombosis (DVT). It was defined by John Homans in 1941 as discomfort behind the knee upon forced dorsiflexion of the foot. [1]
If the cyst breaks open, pain may significantly increase with swelling of the calf. [1] Rarely complications such as deep vein thrombosis, peripheral neuropathy, ischemia, or compartment syndrome may occur. [2] [3] Risk factors include other knee problems such as osteoarthritis, meniscal tears, or rheumatoid arthritis.
This valvular incompetence combined with persistent venous obstruction from thrombus increases the pressure in veins and capillaries. Venous hypertension induces a rupture of small superficial veins, subcutaneous hemorrhage [7] and an increase of tissue permeability. That is manifested by pain, swelling, discoloration, and even ulceration. [8]
The knee-high, ultra-constricting socks are often worn to support blood flow when sitting on long flights, which can cause the legs and feet to swell. ... DVT, or deep venous thrombosis,” says ...
The Pratt Test is a simple test to check for deep vein thrombosis in the leg. [1] [2] It involves having the patient lie supine with the leg bent at the knee, grasping the calf with both hands and pressing on the popliteal vein in the proximal calf. If the patient feels pain, it is a sign that a deep vein thrombosis exists. [citation needed]
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