Perfuusion

Perfuusion is not a standard term in medical literature and is most often a misspelling of perfusion, the process by which a liquid flows through tissues or vasculature.

Perfusion in physiology denotes blood flow to tissues, delivering oxygen and nutrients while removing waste. It is determined by cardiac output, vascular resistance, and the metabolic needs of the tissue. Impaired perfusion can cause ischemia and organ injury; excessive perfusion can contribute to edema. Perfusion is routinely assessed in diagnostics using imaging modalities such as CT perfusion, MR perfusion, and nuclear medicine techniques that measure regional blood flow, cerebral or myocardial perfusion being common targets.

In therapeutic contexts, perfusion is used to preserve or recondition organs outside the body, including hypothermic and normothermic machine perfusion for kidneys, liver, and heart before transplantation.

In laboratory and experimental settings, perfusion may describe the controlled delivery of a perfusate through a tissue, organ, or bioreactor to maintain viability of cells or tissues, or to study flow-related processes.

Terminology and related terms: perfusate is the fluid used; perfusion rate is the volume of fluid per time; a perfusionist is a professional who operates perfusion equipment in clinical settings.

Note: If you encounter "perfuusion" in technical writing, it most often is a typographical variant of "perfusion" rather than a distinct concept.