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Chronic venous insufficiency (CVI) is a medical condition characterized by blood pooling in the veins, leading to increased pressure and strain on the vein walls. [1] The most common cause of CVI is superficial venous reflux, which often results in the formation of varicose veins, a treatable condition. [2]
How a varicose vein forms in a leg. 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
If a perforator valve is incompetent, then a reflux from the deep to the superficial through the perforator vein will be registered. [21] Valsalva maneuver – when the patient performs this maneuver, he or she increases intra-abdominal venous pressure. If the great saphenous valve at the sapheno-femoral junction is incompetent, a reflux will ...
Blood clots can damage the valves of the veins, leading to chronic venous insufficiency, which makes it harder for the body to pump blood back to the heart, per the Cleveland Clinic. This can lead ...
Weakened Venous valves: these are crucial towards ensuring upward flow to the heart from the lower extremities. If weakened, they may fail to close properly which leads to backwards blood flow/blood pooling. This can lead to slower blood flow in the veins. [8] Ultrasonography-Doppler ultrasound
It usually develops in your legs. The strongest risk factors are diabetes and smoking. ... Heart valve problems may be treated with medications or surgery. Peripheral arterial disease.
Gravity will pull the blood back into an individual's legs, ankles and feet. This forces the veins to expand or "balloon" to accommodate this extra blood. The valves of the veins work best in concert with accompanying muscle contractions that force the blood to continue moving up the leg. Standing with some muscles constantly strained weakens ...
[1] Venous ulcers are wounds that are thought to occur due to improper functioning of venous valves, usually of the legs (hence leg ulcers). [2]: 846 They are an important cause of chronic wounds, affecting 1% of the population. [3] Venous ulcers develop mostly along the medial distal leg, and can be painful with negative effects on quality of ...
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