Other names: edema, edema
Swelling (edema), we mean the presence of increased amounts of fluid outside the cells and out of the vascular and lymphatic system (ie “interstitium”). Swelling can be either so-called. Generalized,thus evident broadly throughout the body, or localized, affecting a certain body part.
Mechanisms of its formation a few. First, the increased pressure in the blood vessels, because of which the liquid is filtered from the blood after a pressure drop outside the vascular system. Similarly, it may be a lack of protein because proteins in the blood creating a so-called. Oncotic pressure, which makes liquid filtered of capillaries sucked back into the blood. Injury or inflammation disrupts the integrity of the walls of capillaries, which in turn contributes to the formation of edema.The lymphatic system normally also interstitium dissipates a certain amount of fluid, so blockade lymphatic drainage of a part of the body is also accompanied by swelling.
The most common cause of edema is a failure of the pumping of the heart. The blood accumulates in the veins, “before the heart” and therefore in the veins increases blood pressure. Increase in pressure is transmitted to the capillaries, the wall of the blood loses the edema fluid and settles in the interstitium. Because the fluid follows the earth’s gravity, the swelling seen in heart failure patients in ambulatory first on the lower limbs (ankles). In recumbent swelling is located in the area around the sacrum. With the advanced stages of the disease causing swelling spreads to the trunk, upper limbs and head, the fluid also gets into the abdominal and thoracic cavity.
The aforementioned protein deficiency may be caused by the lack of food intake (rather extends to the African continent), losses in kidney function failure or insufficient production of proteins in liver disease.
Edema also arise when priming the body, or high fluid intake at hyperaldosteronism (high levels of the hormone aldosterone in the blood) may also be to blame liver cirrhosis with portal hypertension.
Disability lymphatic system to manifest itself. Swelling in one leg.
Swelling of the skin resulting inflammation is warm and flushed.
If there is no known cause of the swelling, then it is advisable to go to a physician to rule out serious illnesses.
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