Increasing ICP
– Adaptive responses
• If decreasing the CSF is not effective
– Vasoconstriction of the vasculature and external compression of the venous system to decrease in ICP
– Increased vasoconstriction will cause stage 1 intracranial HTN but there will not be an increase in ICP if the adaptation is effective
– As ICP reaches MAP there will be a mared reduction in cerebral blood flow and increased hypoxia
– Systemic HTN will occur in order to continue to perfuse the brain during high ICP