What is the definition or description of: peritoneal dialysis?

Kidney failure treat: One of the options for treatment of end stage kidney disease, the other options are hemodialysis and kidney transplantation. In peritoneal dialysis a tube is placed surgically in the belly. One end is in the peritoneal cavity and the other end is outside. Dialysis fluid is placed in the peritoneal cavity through the tube. The peritoneum acts as a filter, and drained out of the cavity.

See below: A kind of dialysis where fluid is introduced every few hours into the abdomen of the patient through a catheter. The peritoneal membrane in the abdomen serves to exchange the toxic substances, electrolytes and fluid across the blood vessels into the fluid which is then drained.