Bruhn J , Myles P.S. , Sneyd R , Struys M.M.R.F.

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Presentation transcript:

Depth of anaesthesia monitoring: what’s available, what’s validated and what’s next? Bruhn J , Myles P.S. , Sneyd R , Struys M.M.R.F. British Journal of Anaesthesia Volume 97, Issue 1, Pages 85-94 (July 2006) DOI: 10.1093/bja/ael120 Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 1 Averaged cortical auditory evoked responses for one subject from each group: halothane (a), enflurane (b). The traces represent responses obtained before anaesthesia, after induction, and at different end-tidal concentrations of each agent. Pa is denoted by ▴ and Nb by ▿(adapted from reference67 with permission). British Journal of Anaesthesia 2006 97, 85-94DOI: (10.1093/bja/ael120) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 2 ZIPPREP ©EEG electrode (Aspect Medical Inc., Newton, MA, USA). (a) The original single sensor type. (b) The ZIPPREP sensor incorporating four ZIPPREP sensors. British Journal of Anaesthesia 2006 97, 85-94DOI: (10.1093/bja/ael120) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 3 Frontal view of the Narcotrend Monitor (Narcotrend Monitor, Schiller AG, Baar, Switzerland) (a) and the A-2000 BIS-XP Monitor (Aspect Medical Inc., Newton, MA, USA) (b). British Journal of Anaesthesia 2006 97, 85-94DOI: (10.1093/bja/ael120) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 4 View of the M-Entropy module and the partial screen of the S5-Monitor (GE Healthcare, Helsinki, Finland). British Journal of Anaesthesia 2006 97, 85-94DOI: (10.1093/bja/ael120) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 5 Raw EEG waves. A, awake state; B, β-activation; C, burst suppression. British Journal of Anaesthesia 2006 97, 85-94DOI: (10.1093/bja/ael120) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions