AANS Neurosurgeon | Volume 29, Number 1, 2020

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'Are We Waiting Long Enough?' Study Raises Questions on Timing of Intracranial Pressure Measurements

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In patients with an EVD to drain excess fluid from around the brain, current practice in terms of temporarily clamping the drain does not provide sufficient time to reach the true ICP level in most cases, according to the new research by Xiuyun Liu, PhD, and colleagues of University of California, San Francisco.

Three-fourths of EVD Closures Don’t Leave Enough Time to Reach Stable ICP

The researchers evaluated procedures for ICP measurement via EVD in patients with subarachnoid hemorrhage (SAH). Subarachnoid hemorrhage is a severe type of stroke in which there is bleeding into the brain, most commonly caused by a ruptured aneurysm. Patients with SAH, traumatic brain injury, and certain other conditions are at risk of developing excessive pressure within the skull, which can cause secondary brain injury.

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