Best Practice & Research Clinical Anaesthesiology
Volume 20, Issue 1 , Pages 129-139, March 2006

Auditory evoked potentials

  • G. Plourde, MD, MSc

      Affiliations

    • Corresponding Author InformationTel.: +1 514 398 1917; fax: +1 514 398 1352.

Department of Anesthesia, McGill University and Montreal Neurological Hospital, 3801 University, Montreal, Que, Canada H3A 2B4

This chapter will focus on the two auditory evoked potentials (AEP) most commonly used to assess the effects of general anesthetics on the brain, the auditory middle latency response (AMLR) and the 40Hz auditory steady-state response (40Hz-ASSR). We will review their physiological basis, the recording methodology, the effects of general anesthetics, their ability to track changes in level of consciousness and their clinical applications. Because of space constraints, this review will be limited to human studies.

Key words: brain, general anesthetics, consciousness, unintentional awareness, depth of anesthesia

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PII: S1521-6896(05)00057-1

doi:10.1016/j.bpa.2005.07.012

Best Practice & Research Clinical Anaesthesiology
Volume 20, Issue 1 , Pages 129-139, March 2006

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