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Kidney Disorders Treatment > Dialysis procedure as treatment for Kidney Failure

Find here the overview of the different procedures of Dialysis as a treatment for Kidney Failure. Details of Peritoneal Dialysis procedure Hemodialysis procedure.
Dialysis is used to treat kidney failure by replacing the functions of the kidneys, which filter out wastes and excess water from the blood. It can be a temporary treatment for acute kidney failure or a long term measure used in end-stage kidney failure. There are two forms; peritoneal membrane in the abdomen is used as a filter; and hemodialysis, in which a kidney machine filters the blood.

How dialysis works?

During dialysis, excess water and waste products from the blood pass across a membrane into a solution (the dialysate), which is then discarded.

 

Peritoneal Dialysis procedure

In Peritoneal dialysis, the peritoneum, the membrane that surrounds the abdominal organs, is used instead of the kidneys to filter the blood. A procedure called an exchange is carried out four times a day at home. During an exchange, dialysis fluid that was flowed into the abdomen 4-6 hours earlier is drained out of the peritoneum through a catheter in the abdominal wall. The fluid is replaced with fresh solution, then the equipment is disconnected, and you can carry out normal activities. Between exchanges, wastes and excess water pass continually from the peritoneal blood vessels into the dialysis fluid.

 

Undergoing Peritoneal Dialysis

In peritoneal dialysis fluid is changed at regular intervals and is continually present in the abdomen. Once a fluid exchange has taken place, the bags and tubing are detached, and you can move freely. The bag of fresh dialysate is slowly emptied into the peritoneal cavity. Used dialysate drains out of the body and collects in this bag before fresh fluid is allowed to flow in. The abdominal organs are coveed by a peritoneal membrane, which is rich in blood vessels. In peritoneal dialysis, waste products and water pass from the blood across the membrane and into dialysate fluid in the abdomen.

 

Hemodialysis procedure

 

In Hemodialysis, blood is pumped by a kidney machine through a filter attached to the side of the machine. Inside the filter, blood flows on one side of a membrane and dialysis fluid flows on the other. Waste products and water pass from the blood across the membrane and into the dialysate fluid, and the filtered blood returns to the body. Each treatment takes 3-4 hours and is repeated about three times a week.

 

Undergoing Hemodialysis

During Hemodialysis, you are attached to the kidney machine for several hours while waste products and water are removed from your blood. Hemodialysis is usually carried out in dialysis centers, but some people are able to treat themselves at home. Dialysis requires fast blood flow. A vein and an artery near the skin surface are surgically joined so that the vein carries blood at high pressure. This vein can then be used for access to the circulatory system.

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