Rhythmic variations in ICP described first described by Lundberg in the 1960’s Clinically less useful in modern practice, with an emphasis on earlier recognition and treatment of raised ICP meaning A waves rarely seen: Type Description Example Implication A-wave...
With increasing ICP there is decreased compliance of the brain resulting in a change in the morphology of the ICP waveform: Increases in amplitude P2 exceeds P1 Becomes broader and ’rounded...
ICP >15 mm Hg is elevated Management is mostly extrapolated from TBI where treatment is recommended for ICP >22 mm Hg (Brain Trauma Foundation Guidelines): Values above this level are associated with increased mortality However, this single threshold is probably...
The normal ICP trace looks similar to an arterial trace but has 3 distinct peaks: P1Percussion Wave P2Tidal wave P3Dicrotic notch The arterial systolic pressure transmitted from the choroid plexus Thought to represent true ICP proper as a correlate of the arterial...
