Dialysis refers to the artificial cleaning of blood and provides a substitute for the kidneys, without performing all renal functions. Dialysis is typically required as a end-result of Chronic Kidney Disease.
Haemodialysis has approximately 75% usage in Australia and is the process of pumping
blood out of the body and through an external artificial kidney to receive filtration. Haemodialysis requires vascular access, which is typically achieved by:
Treatment is usually 3x per week with each session lasting approximately 4 – 5 hours. Treatment involves circulating
blood across a semipermeable membrane; to achieve hydrostatic pressure (like that found in the nephron) and enhance filtration, dialysate is run in counter current flow to blood.
Peritoneal Dialysis is used approximately 25% of the time in Australia and is described as the process of adding specialised fluid (dialysate) to the peritoneal cavity to provide blood filtration.
There are 2x types of peritoneal dialysis:
St John WA