The two types of peritoneal dialysis are continuous ambulatory peritoneal dialysis-also called CAPD-and automated peritoneal dialysis-which doctors sometimes call APD or continuous cycler-assisted peritoneal dialysis. After learning about the types of peritoneal dialysis, you can choose the type that best fits your schedule and lifestyle. If one schedule or type of peritoneal dialysis does not suit you, you can talk with your doctor about trying another type.

• Continuous ambulatory peritoneal dialysis does not require a machine. You can do it in any clean, well-lit place. The time period that the dialysis solution is in your belly is called the dwell time. With continuous ambulatory peritoneal dialysis, the dialysis solution stays in your belly for a dwell time of 4 to 6 hours, or more. Each exchange takes about 30 to 40 minutes. During an exchange, you can read, talk, watch television, or sleep. Usually, you change the dialysis solution at least four times a day and sleep with solution in your belly at night. You do not have to wake up and perform exchanges during the night.

• Automated peritoneal dialysis uses a machine called a cycler to fill and empty your belly three to five times during the night while you sleep. In the morning, you begin one exchange with a daylong dwell time. You may do an additional exchange around the middle of the afternoon without the cycler to increase the amount of waste removed and reduce the amount of fluid left behind in your body.

If you weigh more than 175 pounds or if your peritoneum filters wastes slowly, you may need a combination of continuous ambulatory peritoneal dialysis and automated peritoneal dialysis. For example, some people use a cycler at night and perform one exchange during the day. Your health care team will help you determine the best schedule for you.