Flash Player 9.0.0 is required for the Video Gallery.
Get Adobe Flash Player.
W. David Freeman, MD, FSNS, FAAN
CONTINUUM: Lifelong Learning in Neurology. 21(5, Neurocritical Care):1299-1323, October 2015
The ICP waveform shown demonstrates a value of greater than 20 mm Hg and is frankly triangular with a low compliance/high elastance appearance. CSF
is drained from the external ventricular drain (EVD) system (line goes flat for a while) and is later reopened periodically. By draining CSF, this essentially changes the ICP waveform by moving
down and left on the elastance curve. Later, the ICP waveform returns after the external ventricular drain is opened and some P wave components are seen. However, it is important to recognize that the ICP waveform still has an overall noncompliant morphology indicative of a persistent abnormal intracranial pressure-volume state.
Colleague's E-mail is Invalid
Your message has been successfully sent to your colleague.