VASCULAR SURGERY – EURODOCTOR.RU – 2007
What are varicose veins?
Varicose (varicose veins) – a pathological expansion of saphenous veins most often – a leg veins, but varicose veins occur elsewhere (on the hands, abdomen, scrotum). In appearance these veins are not just expanded, they are twisted, dark blue, sometimes reminiscent of grapes. Varicose – a progressive disease and if left untreated, it gradually strengthened its manifestation, and for worse. Pronounced varicose veins appears dull and aching pain in the legs arching.
In our body there are two types of veins. The first type – is the superficial veins, they are under the skin. The second type – a deep vein. They are in the thickness between the muscles. All the superficial veins somehow fall into the deep. All of the deep veins empty into the main veins of man – the hollow vein. In turn, the hollow vein (upper and lower) flow to the heart. Deep and superficial veins are connected by perforating veins.
The blood in the lower extremities are the veins to the heart against gravity. There are several mechanisms to facilitate its movement upwards. First, it is attracting effect of the diaphragm with every breath. Secondly – the so-called muscle pump. Its effect is explained by the fact that the muscle contractions squeeze the veins and the blood moves through them. Backflow of blood in the veins of the legs contributes to the presence of valves.
However, with prolonged sitting or standing, blood stagnates in the veins of the legs. Blood pressure of the deep veins is trying to flow into the surface. Under special circumstances, such as an innate predisposition to varicose veins, weak vein walls and some others, the blood passes through the perforating veins of the deep veins to surface. This leads to an expansion of the latter. The wall of the superficial veins is attenuated. There is a varicose vein.
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