• J Neurosurg Anesthesiol · Jul 2023

    Frontal Electroencephalography Findings in Critically Ill COVID-19 Patients.

    • Brian A Chang, Tuan Z Cassim, Aaron M Mittel, Ansgar M Brambrink, and Paul S García.
    • Department of Anesthesiology, New York-Presbyterian/Columbia University Irving Medical Center, New York, NY.
    • J Neurosurg Anesthesiol. 2023 Jul 1; 35 (3): 322326322-326.

    BackgroundSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) negatively impacts the central nervous system, and studies using a full montage of electroencephalogram (EEG) electrodes have reported nonspecific EEG patterns associated with coronavirus disease 2019 (COVID-19) infection. The use of this technology is resource-intensive and limited in its implementation. In this descriptive pilot study, we report neurophysiological patterns and the potential prognostic capability of an abbreviated frontal EEG electrode montage in critically ill COVID-19 patients.Materials And MethodsPatients receiving mechanical ventilation for SARS-CoV-2 respiratory failure were monitored with Sedline Root Devices using EEG electrodes were placed over the forehead. Qualitative EEG assessments were conducted daily. The primary outcome was mortality, and secondary outcomes were duration of endotracheal intubation and lengths of intensive care and hospitalization stay.ResultsTwenty-six patients were included in the study, and EEG discontinuity was identified in 22 (84.6%) patients. The limited sample size and patient heterogeneity precluded statistical analysis, but certain patterns were suggested by trends in the data. Survival was 100% (4/4) for those patients in which a discontinuous EEG pattern was not observed. The majority of patients (87.5%, 7/8) demonstrating activity in the low-moderate frequency range (7 to 17 Hz) survived compared with 61.1% (11/18) of those without this observation.ConclusionsThe majority of COVID-19 patients showed signs of EEG discontinuity during monitoring with an abbreviated electrode montage. The trends towards worse survival among those with EEG discontinuity support the need for additional studies to investigate these associations in COVID-19 patients.Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.

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