índice bispectral e outros parametros processados do eletroencefalograma: uma atualiza？？o

background and objectives: the processed analysis of electroencephalogram became extremely important to monitor nervous system, being used to obtain a better anesthetic adequacy. the objective was to conduct a review about each processed parameter, defining its real importance. content: a review was conducted showing mathematical, physical and clinical aspects as well as their correlations and updates, presenting new integrated parameters. conclusions: an adequate analysis of processed parameters of electroencephalogram may provide more intraoperative safety as well as result in a better outcome for the patient