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Canadian Journal of Anesthesia, Vol 25, 427-430, Copyright © 1978 by Canadian Anesthesiologists' Society

A Brain Function Monitor for Use during Anaesthesia Preliminary Report

G. A. VOLGYESI P.Eng.1

1 Department of Anaesthesia, The Hospital for Sick Children, 555 University Avenue, Toronto, Ont., M5G 1X8

This simple on-line monitor provides simultaneous noninvasive quantification of continuous processes within the brain, by measuring the augmented delta quotient (ADQ; the proportion of low frequency components in the electroencephalogram). The response of the ADQ, both during experiments in animals and in children undergoing surgery, during cardiopulmonary bypass with and without hypothermia, demonstrates that this concept may prove valuable both to monitor anaesthetic depth and to warn of impending cerebral impairment.






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Copyright © 1978 by the Canadian Anesthesiologists' Society.