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Peritoneal dialysis is a medical treatment that uses the lining of the belly as a natural filter to take waste and extra water out of the blood. It can take over this job when the kidneys can't do it.
The main job of the kidneys is to clean the blood. They take out extra water and waste (things the body doesn't need). These leave the body as pee (urine).
When the kidneys don't work as they should, waste quickly builds up in the body and makes a person sick. When the kidneys stop removing enough waste and extra water from the blood, the person has kidney failure. Then, the person needs dialysis to clean the blood because the kidneys can't.
There are two types of dialysis: peritoneal dialysis (pair-eh-tih-NEEL dye-AL-ih-sis) and hemodialysis (hee-moh-dye-AL-ih-sis).
During peritoneal dialysis, a cleansing solution called dialysate (dye-AL-uh-zate) goes into the belly. Waste and extra water seep across the lining of the belly into the dialysate, which then washes back out, bringing the waste and extra water with it.
Before starting peritoneal dialysis, kids need a soft, flexible tube (a catheter) placed into their belly. Doctors place the catheter while a child is asleep under general anesthesia.
Within 2 weeks, the surgical spot is healed and kids can start peritoneal dialysis treatments. Some may get the treatment earlier, if needed.
Peritoneal dialysis usually takes place at home. A caregiver (or the child or teen, if old enough) puts the dialysate into the body through the catheter. This can be done:
As blood flows through the blood vessels in the belly, waste and extra fluid pass across the lining of the belly into the dialysate. Important things like blood cells and proteins are too large to pass through the lining and stay in the blood. After about an hour, the dialysis machine or gravity drains the dialysate out of the body through the catheter, taking the waste and extra water with it.
The dialysate washes in and out of the belly 8–12 times during each treatment.
A peritoneal dialysis treatment takes about 8–10 hours. Most kids and teens get the treatments while they sleep each night.
There is some discomfort for a few days after the procedure to place the catheter. During the peritoneal dialysis treatments, your child should not feel any pain or discomfort.
Peritoneal dialysis does have some risks, including:
When kids need peritoneal dialysis, staying healthy helps them avoid problems and feel their best. Here are a few tips:
Kids and teens who get peritoneal dialysis can go to school or work. Dialysis is done overnight, so kids can still stick to their usual schedule. Jobs and sports with lots of heavy lifting or contact may not be OK to do. But even with some limits, kids still can do many things they enjoy.
Kids will need regular checkups and blood tests about once a month.
Some people need dialysis treatments for the rest of their lives. If so, they might switch back and forth between peritoneal dialysis and hemodialysis, which is done in a special clinic called a dialysis center.
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
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