• A&A practice · Sep 2019

    Case Reports

    Electroencephalogram Suppression Despite Extremely Low-Dose Anesthetic During Cardiac Surgery: A Case Report.

    • Victoria Van Regemorter, Marie-Agnès Docquier, Laurent de Kerchove, and Mona Momeni.
    • From the Departments of Anesthesiology.
    • A A Pract. 2019 Sep 15; 13 (6): 228-232.

    AbstractA prominent feature of electroencephalogram (EEG) under general anesthesia is anteriorization of α waves. We report the case of a 63-year-old man anesthetized for coronary artery bypass grafting in whom the NeuroSENSE-processed EEG monitor recorded only δ waves in the absence of α frequencies, along with high EEG suppression despite extremely low doses of anesthetics during the whole procedure. The patient fully recovered from anesthesia 2 hours after the procedure and showed neither awareness nor neurological complications. This atypical EEG pattern under low concentration of anesthetics may be an intraoperative marker of a specific brain phenotype.

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