Abstract
Your Patient's Brain| May 2022 Brain Health and the EEG: Toward Personalized Anesthesia Care for Older Patients Patrick L. Purdon, PhD; Patrick L. Purdon, PhD Search for other works by this author on: This Site PubMed Google Scholar Daniel J. Cole, MD, FASA Daniel J. Cole, MD, FASA Search for other works by this author on: This Site PubMed Google Scholar ASA Monitor May 2022, Vol. 86, 1–9. https://doi.org/10.1097/01.ASM.0000830784.65419.6c Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Search Site Citation Patrick L. Purdon, Daniel J. Cole; Brain Health and the EEG: Toward Personalized Anesthesia Care for Older Patients. ASA Monitor 2022; 86:1–9 doi: https://doi.org/10.1097/01.ASM.0000830784.65419.6c Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll PublicationsASA Monitor Search Advanced Search Topics: anesthesia care, brain, electroencephalography, older adult The brain under anesthesia is a marvel to behold. Although the electroencephalogram (EEG) is not a routine part of clinical anesthesia care, there is growing evidence that readily visible changes in the anesthesia-induced EEG are intimately linked to perioperative brain health. Induction of general anesthesia with propofol produces stereotyped oscillations or waves in the EEG that change form in a dose-dependent manner related to the patient's state of consciousness (Anesthesiology 2015;123:937-60). After administering an induction dose of propofol, as a patient becomes sedated, the EEG begins to show small beta oscillations, which alternate at a frequency between 12 to 25 cycles per second (Hz). Soon after, when the patient loses consciousness, a combination of alpha (8 to 12 Hz) and slow (~0.5 to 1 Hz) oscillations develop (PNAS 2013;110:E1142-51). Beyond this point, if the propofol concentration continues to rise, burst suppression may develop, characterized by flat... You do not currently have access to this content.
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