December 4, 2022

Pressure reactivity index or PRx is a tool for monitoring cerebral autoregulation in the intensive care setting for patients with severe traumatic brain injury or hemorrhage, in order to guide therapy to protect the brain from dangerously high or low cerebral blood flow. PRx is one of the recognized parameters for the assessment of cerebrovascular autoregulation, with a more than 20-year history in neurointensive care.

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