From Wikipedia, the free encyclopedia
Reactive hyperemia is the transient increase in organ blood flow that occurs following a brief period of ischemia . Following Ischemia there will be a shortage of oxygen and a build-up of metabolic waste.
This is commonly tested in the legs using Buerger's test.
Reactive hyperemia often occurs as a consequence of Raynaud's phenomenon, where the vasospasm in the vasculature leads to ischemia and necrosis of tissue and thus a subsequent increase in blood flow to remove the waste products and clear up cell debris.