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How Is Kidney Failure Treated by Dialysis

2013-03-29 16:17

Dialysis or kidney transplant is needed when one is diagnosed with kidney failure which occurs as the final consequence of acute kidney problem and chronic kidney problem. In comparison with kidney transplant, dialysis is more prevalent among kidney failure patients in clinic. Well then, how is kidney failure treated by dialysis?

What is dialysis and how is kidney failure treated by it?

Dialysis involves the artificial process of getting rid of wastes and unwanted waster from the blood. There are different types of dialysis in clinic and they are hemodialysis, peritoneal dialysis, hemofiltration, hemodiafiltration and intestinal dialysis and so on. Among these dialysis methods, hemodialysis and peritoneal dialysis are the most common two types.

Hemodialysis: Hemodialysis is the most commonly used renal replacement therapy for kidney failure and it shows special treatment effects in removing wastes with small molecular weight such as creatinine and urea nitrogen. For kidney failure patients with hemodialysis, an arteriovenous fistula need to be created by surgery to connect artery and vein. Blood flow out of patient’s body through this fistula and filtered by a machine outside patient’s body.

Peritoneal dialysis: Different from hemodialysis, peritoneal dialysis helps kidney failure patients remove wastes inside patient’s body. In peritoneal dialysis, fluid is introduced through a permanent tube in the abdomen and flushed out eigher every night while the patients sleeps or via regular exchanges throughout the day. Compared with hemodialysis, peritoneal dialysis is more convenient, as they can do it by themselves at home.

Can dialysis cure kidney failure?

Dialysis is just a medical method that used to purify blood. It can not repair kidney damages, so kidney failure can not be cured by dialysis. Kidney is a bean-shaped organ with complicated structure. Similar with our other cells, kidney intrinsic cells also have self-repairing ability. However, when the damage is out of their self-repairing ability, they will become necrotic. For these dead kidney tissues, they can not be revived according to present medical technology, so Chronic Kidney Failure can not be cured. But by repairing these damaged renal intrinsic cells, kidney function can be improved, so kidney failure patients have chance to avoid dialysis or reduce dialysis frequency.

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