As blood passes through the blood vessels lining the peritoneal cavity, waste products and excess fluid are drawn out of the blood and into the dialysis fluid. This is left in place permanently.įluid is pumped into the peritoneal cavity through the catheter. Like the kidneys, the peritoneum contains thousands of tiny blood vessels, making it a useful filtering device.īefore treatment starts, a cut (incision) is made near your belly button and a thin tube called a catheter is inserted through the incision and into the space inside your abdomen (the peritoneal cavity). Peritoneal dialysis uses the inside lining of your abdomen (the peritoneum) as the filter, rather than a machine. Some examples of a home dialysis schedule include: Haemodialysis is the most common type of dialysis and the one most people are aware of.ĭuring the procedure, a tube is attached to a needle in your arm.īlood passes along the tube and into an external machine that filters it, before it's passed back into the arm along another tube.Īt dialysis centres, this is usually carried out 3 days a week, with each session lasting around 4 hours. There are 2 main types of dialysis: haemodialysis and peritoneal dialysis. If a kidney transplant is not suitable for you – for example, because you're not well enough to have a major operation – dialysis may be needed for the rest of your life. It's not always possible to carry out a kidney transplant straight away, so dialysis may be needed until a suitable donor kidney becomes available. It depends. In some cases, kidney failure may be a temporary problem and dialysis can be stopped when your kidneys recover.īut often, someone with kidney failure will need a kidney transplant. Left untreated, this can cause a number of unpleasant symptoms and eventually be fatal.ĭialysis filters out unwanted substances and fluids from the blood before this happens. Waste products and fluid can build up to dangerous levels in your body. If your kidneys are not working properly – for example, because you have advanced chronic kidney disease (kidney failure) – the kidneys may not be able to clean the blood properly. Normally, the kidneys filter the blood, removing harmful waste products and excess fluid and turning these into urine to be passed out of the body. It often involves diverting blood to a machine to be cleaned. Dialysis is a procedure to remove waste products and excess fluid from the blood when the kidneys stop working properly.
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