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Fig. 1 | Chinese Neurosurgical Journal

Fig. 1

From: Hypoperfusion assessed by pressure reactivity index is associated with delayed cerebral ischemia after subarachnoid hemorrhage: an observational study

Fig. 1

Assessment of CPPopt in two exemplary patients. The pressure reactivity index (PRx) is plotted against cerebral perfusion pressure (CPP). ‘U-shaped’ curve relationships between CPP and PRx including estimation of optimal CPP (CPPopt) is obtained. PRx values > 0.3 indicate impaired pressure reactivity. The patient A reaches the minimum PRx for CPP values around 70–75 mmHg. The patient B has the CPPopt around 95–100 mmHg

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Chinese Neurosurgical Journal

ISSN: 2057-4967

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