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It is a combination venous/lymphatic disorder that originates in defective "leaky" veins that allows the blood to back flow (venous reflux), slowing the return of the blood to the heart (venous stasis). The venous pressure in the legs changes dramatically while standing compared to lying down.
Deep and superficial vein thrombosis may in turn be caused by thrombophilia, which is an increased propensity of forming blood clots. [citation needed] Arteriovenous fistula (an abnormal connection or passageway between an artery and a vein) may cause chronic venous insufficiency even with working vein valves. [citation needed]
Ultrasonography of chronic venous insufficiency of the legs allows the examiner to evaluate the gross anatomy of the venous networks as well as the blood flow direction, which is crucial in determining vein pathology. It has become the reference standard used in the assessment of the condition and hemodynamics of the veins of the lower limbs. [1]
Figure A shows a normal vein with a working valve and normal blood flow. Figure B shows a varicose vein with a deformed valve, abnormal blood flow, and thin, stretched walls. The middle image shows where varicose veins might appear in a leg. Comparison of healthy and varicose veins. Varicose veins are more common in women than in men and are ...
A long, thin red area may be seen as the inflammation follows a superficial vein. This area may feel hard, warm, and tender. The skin around the vein may be itchy and swollen. The area may begin to throb or burn. Symptoms may be worse when the leg is lowered, especially when first getting out of bed in the morning. A low-grade fever may occur.
It is defined by the occlusion of venous blood vessels by blood clots. There are two major types of VTE: deep-vein thrombosis (DVT) and pulmonary embolism. [10] DVT is often found in the calf, accompanies with the swelling of limbs along the deep vein while pulmonary embolism causes chronic pulmonary hypertension. [11]
Heavy legs is a condition described as an unpleasant sensation of pain and heaviness in the lower limbs. Symptoms include legs feeling weighted, stiff, and tired. Heavy legs can be caused by a wide-ranging collection of disorders including but not restricted to varicose veins, peripheral artery disease, restless legs syndrome, multiple sclerosis, venous insufficiency.
A person with a two hour history of phlegmasia cerulea dolens (left leg, right side of image) Phlegmasia cerulea dolens (PCD) (literally: 'painful blue inflammation'), not to be confused with preceding phlegmasia alba dolens , is an uncommon severe form of lower extremity deep venous thrombosis (DVT) that obstructs blood outflow from a vein.