Cerebral blood flow which varies with arterial pressure.
+Compensatory hyperventilation.
+Drastically decreased intracranial pressure.
+Epidural hematoma.
+Profound constriction of cerebral resistance vessels.
With the loss of autoregulation, massive cerebral vasodilation occurs. Systemic pressure is transmitted to the capillaries, and the outpouring of fluids into the extravascular space can contribute to vasogenic edema and thus further increase ICP.