Continuous Renal Replacement Therapy provides continuous venovenous hemofiltration (CVVH) which allows gentle removal of fluid and solutes over a long period of time. ICU patients who require CVVH are experiencing severe renal failure and their bodies are not removing urine and other waste products correctly. They may also have a hard time controlling fluid balances that may, in turn, affect their nutrition. CVVH may also allow children with organ failure—such as heart or liver failure—to stabilize, recover and/or become ready for a transplant.
CVVH does not cause extreme fluid shifts or sharp blood circulation instability. The use of a highly permeable membrane filters waste in a similar way that a kidney does; it gets rid of the things your child's blood doesn't need and keeps the components your child's blood does require.