Summary
This simple on-line monitor provides simul taneous 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.
Résumé
Ľauteur décrit un moniteur simple qui permet ľévaluation continue quantitative et non invasive de la fonction cérébrale par la mesure du quotient delta augmenté (QDA ou la proportion des ondes de basse fréquence de ľélectroencéphalogramme). La présente étude a pour but de montrer ľutilité du QDA enregistré chez ľanimal de laboratoire et ľenfant pendant la chirurgie sous circulation extra-corporelle, avec et sans hypothermic comme moniteur de la profondeur anesthesique et de ľischémie cérébrale.
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Volgyesi, G.A. A brain function monitor for use during anaesthesia preliminary report. Canad. Anaesth. Soc. J. 25, 427–430 (1978). https://doi.org/10.1007/BF03006575
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DOI: https://doi.org/10.1007/BF03006575