Choosing a type of dialysis is an important decision. The two main types are haemodialysis and peritoneal dialysis. Each has its own advantages and constraints, and understanding them helps you choose with your care team.
Haemodialysis: the basics
Haemodialysis is the most common form of dialysis worldwide. Blood flows from an access, usually in the arm, through a dialyser that removes waste and extra fluid, then returns to the body. Sessions usually last 3 to 5 hours, three times a week, in a dialysis centre. Home haemodialysis is possible for some patients.
Advantages of haemodialysis
- Treatment is carried out by trained professionals
- Usually three sessions a week, leaving other days free
- Contact with other patients and the care team
- Medical help on hand during treatment
- No supplies to store at home
Peritoneal dialysis: the basics
Peritoneal dialysis uses the lining of the abdomen (the peritoneum) as a filter. A soft catheter is placed in the abdomen. Dialysis fluid is run in, absorbs waste and extra water, then is drained and replaced.
Two ways to do it
- CAPD (continuous ambulatory peritoneal dialysis): manual exchanges, usually 3 to 5 a day, each taking about 30 to 40 minutes.
- APD (automated peritoneal dialysis): a machine called a cycler does the exchanges at night, over about 8 to 10 hours.
Advantages of peritoneal dialysis
- More flexibility and independence, at home or at work
- Gentler, continuous treatment
- No needles
- Often fewer diet restrictions than haemodialysis
- May help preserve remaining kidney function
Making the right choice
The best option depends on your health, your lifestyle, your home, your dexterity and the support around you. Your nephrologist helps you weigh these factors. Some patients change type over time.
For travel, both are possible: haemodialysis patients book sessions in a centre at their destination, while peritoneal dialysis patients organise delivery of their supplies.
Sources
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