Compression Stockings are needed when the leg is swollen due to varicose veins. Varicose vein are due to the flow of blood. It is the volume of blood flowing back to the heart through systemic veins, occurs due to the pressure generated by contractions of the heart’s left ventricle. When you stand, the pressure pushing blood up the veins in your lower limbs is barely enough to overcome the force of gravity pushing it back down. Besides the heart, two other mechanisms pump blood from the lower body back to the heart, the skeletal muscle pump and the respiratory pump. Both pumps depend on the presence of the valve in veins.
The skeletal pump operates like when you are standing at rest, both venous valve closer to the heart and the one farther from the heart in the part of the leg are open and the blood flows upward toward the heart. Contraction of leg muscles such as when standing on tip toes or taking a step, compress the vein. The compression pushes the blood through the valve closer to the heart, an action called milking. Compression stockings help the blood push through the valve. At the same time, the valve farther the heart in the uncompressed segment of the vein closes as some blood is pushed against it. People who are immobilized through injury or disease lack these contractions of leg muscles. As a result, their venous return is slower and they may develop circulation problems.
After muscle relaxation, pressure falls in the previously compressed section of the vein, which causes the valve closer to the heart to close. The valve farther from the heart now opens because blood pressure in the foot is higher than in the leg, and the vein fills with blood from the foot.
Compression Stockings and elastic stockings are treatment for venous insufficiency and varicose veins. It controls the symptoms, promotes healing of ulcers and restores the normal ability to walk.
The skeletal pump operates like when you are standing at rest, both venous valve closer to the heart and the one farther from the heart in the part of the leg are open and the blood flows upward toward the heart. Contraction of leg muscles such as when standing on tip toes or taking a step, compress the vein. The compression pushes the blood through the valve closer to the heart, an action called milking. Compression stockings help the blood push through the valve. At the same time, the valve farther the heart in the uncompressed segment of the vein closes as some blood is pushed against it. People who are immobilized through injury or disease lack these contractions of leg muscles. As a result, their venous return is slower and they may develop circulation problems.
After muscle relaxation, pressure falls in the previously compressed section of the vein, which causes the valve closer to the heart to close. The valve farther from the heart now opens because blood pressure in the foot is higher than in the leg, and the vein fills with blood from the foot.
Compression Stockings and elastic stockings are treatment for venous insufficiency and varicose veins. It controls the symptoms, promotes healing of ulcers and restores the normal ability to walk.
No comments:
Post a Comment