Effect of isoflurane on the auditory steady-state response and on consciousness in human volunteers.


BACKGROUND The auditory steady state response (ASSR) is a sustained electrical response of the brain to auditory stimuli delivered at fast rates (30-50 responses/s). The aim of this study was to evaluate the effect of 0.26-0.50% isoflurane on the ASSR and on consciousness, defined as responsiveness to verbal commands. METHODS Ten volunteers (21-31 yr… (More)


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