Pediatric anesthesia monitoring with the help of EEG and ECG

This paper presents research regarding the monitoring of the brain and the adequacy of anesthesia during surgery. Particular variables are derived fro m EEG and ECG signals and are correlated to anesthetic gas (sevoflurane) co ncentration, in pediatric anesthesia. The methods used for parameter extrac tion are based on change detection theory and time-frequency representation . Preliminary results show that the expired anesthetic gas concentration mo dulates both the heart rate variability and the duration of the burst suppr ession. Monitors of the central nervous system and autonomic nervous system activities can be expected to be based on these variables.