Loss of spectral alpha power during spine surgery: what could be wrong?

J Clin Monit Comput

Department of Anesthesiology, Clinica Mérida, Mérida - Yucatan, México.

Published: December 2021

AI Article Synopsis

  • Anesthetic drugs have specific effects on brain activity, which can be tracked using electroencephalographic (EEG) signatures.
  • Monitoring EEG spectrograms during surgery helps anesthesiologists adjust drug delivery effectively, as certain patterns indicate the level of anesthesia or pain signals.
  • A case study highlighted how changes in EEG patterns identified a problem with propofol delivery, emphasizing the importance of EEG monitoring in anesthetic management.

Article Abstract

The electroencephalographic signatures of anesthetic drugs relate to a specific set of action mechanisms within the neural circuits. During intraoperative care, the recognition and correct interpretation of the EEG spectrogram can be used as a tool to guide anesthetic administration. For example, loss of alpha power during propofol anesthesia may be a sign of lighter level of hypnosis and/or of an increase in nociceptive inputs. We describe a case report of inadvertent interruption of propofol delivery that was first detected by changes in the electroencephalogram spectrogram.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8545759PMC
http://dx.doi.org/10.1007/s10877-021-00720-1DOI Listing

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