Evaluation of the BRAINDEX Brain Monitor in Cardiac Surgery, Interventional Comparative Study

The study procedure consists of monitoring the values of 3 cerebral parameters: SctO2, bcSEF and ANI measured by the ARGOS sensor. These 3 parameters will be recorded and compared after the intervention with 3 parameters considered as standard: SctO2 measured by the INVOS 7100 cerebral oximeter, the bispectral index (BIS) measured by the BIS monitor and the ANI measured by the MDoloris monitor. These 3 reference parameters are once again usually monitored and recommended for all cardiac surgery.