2014年10月6日星期一

Edema in Chronic Kidney Disease (CKD)

Edema which is also known as swelling in some countries is very common among people with Chronic Kidney Disease (CKD).
Edema means there are excessive fluid in the gap of the tissues outside the blood vessels. It is a pathological process and the fluid comes from blood. Many reasons can cause edema and according to the causes, edema can be divided into cardiac edema, renal edema, hepatic edema, nutritional edema, allergic edema, endocrine edema, edema caused by connective tissue disease, idiopathic edema and many others.(Swelling and Kidney Disease)
Renal edema refers to the edema caused by renal dysfunction. Edema appearing in Chronic Kidney Disease generally is resulted from two kinds of situations. The first one is that glomerular filtration function decreases, but reabsorption function of renal tubule still keeps normal. At that time, on one hand, the excessive fluid can not be filtered out; on the other hand, most of the filtered fluid is reabsorbed by renal tubule. As a result, most of the fluids are kept in the body, which is manifested as edema. Another situation is that large amount of protein are lost along with the urine. in terms of people with Chronic Kidney Disease, their kidneys are damaged and can not stop protein from being leaked. Consequently, large amount of protein get out of our body. Protein exists in the blood, and reducing of protein will cause the decrease of solute concentration, leading to the imbalance between the inside and outside of the blood vessels. To keep balance between them, much more fluid in the blood vessels will ooze and then get into the gap among tissues. Finally, edema appears.
Edema caused by Chronic Kidney Disease usually appears in the loose tissues firstly such as the eyelids, face and ankles. It is more obvious in the morning and then relieved in the noon or afternoon. In serious cases, edema can appear in the whole body.

Although edema is one of the common symptoms of Chronic Kidney Disease, it does not always kidney disease. Therefore, once you suffer from edema, you should go to hospital to do examination to find out the root causes of it. Moreover, caused by Chronic Kidney Disease also can affect its sufferers’ appetite by making them vomit, so treating edema is also essential for sufferers from kidney disease. for more information, please email to me or consult our consultant online.

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