How is oedema to return a responsibility?

summary

Edema is a symptom of * retention of water in the body, flooding the skin, causing head and eye socket (eye depression), limbs, abdomen, and even edema. Edema is usually caused by exogenous pathogenic wind, dampness and water or internal injury, resulting in dysfunction of lung, spleen and kidney in regulating, transferring and evaporating water and liquid. Let's share what happened to edema?.

How is oedema to return a responsibility?

First: edema, as the name suggests, is that there is more water in the tissue, and the water stays in the tissue gap, causing tissue swelling. Under normal circumstances, there is a dynamic balance between the fluid in the tissue space and the blood. If there is more water in the tissue space, the water will return to the blood vessels, and then pass through the blood vessels to the kidney and excrete with urine. This balance prevents excessive water from remaining in the tissue and causing edema. In other words, edema must be the dynamic balance between tissue space and blood state of the problem, that is, water filtered out of the blood vessels more than the force into the blood vessels!

Second: edema is actually the result of the competition between two forces, that is, the force of forcing water to filter out capillaries and the force of forcing liquid to return into capillaries. The result of their competition determines the occurrence and regression of edema. As shown in the figure below, the filtering power, that is, the power to form edema, mainly comes from capillary hydrostatic pressure and colloidal osmotic pressure of tissue fluid; The power to enter blood vessels, that is, the power to reduce swelling, is the colloidal osmotic pressure of plasma and the hydrostatic pressure of tissue fluid. The direction and speed of the liquid filtering out and returning are determined by the force contrast between filtering out and entering the blood vessel.

Third: the power of edema = tissue fluid formation pressure (capillary pressure + tissue fluid colloid osmotic pressure) - tissue fluid reflux pressure (tissue fluid hydrostatic pressure + plasma colloid osmotic pressure).

matters needing attention

① Leg swelling, especially after standing for a long time, we should rule out the problem of venous insufficiency of the lower limbs. The elderly should check the heart, because people with cardiac insufficiency can also cause increased venous pressure and edema of the lower limbs. ② Eye swelling after getting up early, if it disappears soon after getting up, it may have something to do with drinking too much water, because excessive water, the kidney is difficult to discharge, causing edema is more common. However, if frequent eyelid edema, and not easy to subside, it is necessary to check. Some diseases, such as liver disease, kidney disease and malignant tumor, can cause low plasma protein, low osmotic pressure, water is not easy to retain in the blood vessels, and kidney disease due to decreased renal drainage function, excessive water in the body, is also an important cause of edema. ③ Postoperative edema postoperative edema is also very common, often associated with venous or lymphatic circulation disorders, because in addition to tumor compression lymphatic vessels or venous reflux obstruction, surgical injury is also a common cause of tissue edema.