Central Nervous System Processed EEG (BIS) Cerebral Oximetry Cerebral desaturations appear to be related to neurological outcome, with cumulative area of rSO2 < 40% being the most significant predictor for postoperative impairments [Yao FS et al. J Cardiothorac Vasc Anesth 18: 552, 2004]. Whether or not they change management is controversial. Murkin JM et al. […]