Ask the Passy-Muir Clinical Specialist

How Early in Recovery from Traumatic Brain Injury Can a Passy Muir® Valve Be Used?

Assessment of cognitive function begins very early in patients with severe traumatic brain injury, often as soon as patients begin emerging from a deep coma (1-3). The Rappaport Coma/Near Coma Scale is a standardized assessment tool that scores a patient’s responses to various stimuli across all sensory domains (1). A patient’s ability to vocalize or verbalize is a significant factor in this assessment.

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