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Daily measured cerebral physiology. Demonstrates key daily physiological relationships. A Is the % time ICP was above 20 mmHg per day, B the median CPP value per day, C and D were PRx and COx_a > 0 au which is associated with impaired cerebrovascular reactivity. Au, arbitrary units; COx_a, cerebral oximetry index; CPP, cerebral perfusion pressure; ICP, intracranial pressure; mmHg, millimeters of mercury; PRx, pressure reactivity
