Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDS

The sedation management of patients with severe COVID-19 is challenging. Processed electroencephalography (pEEG) has already been used for sedation management before COVID-19 in critical care, but its applicability in COVID-19 has not yet been investigated. We performed this prospective observationa...

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Main Authors: Armin Niklas Flinspach, Sebastian Zinn, Kai Zacharowski, Ümniye Balaban, Eva Herrmann, Elisabeth Hannah Adam
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/11/12/3494
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author Armin Niklas Flinspach
Sebastian Zinn
Kai Zacharowski
Ümniye Balaban
Eva Herrmann
Elisabeth Hannah Adam
author_facet Armin Niklas Flinspach
Sebastian Zinn
Kai Zacharowski
Ümniye Balaban
Eva Herrmann
Elisabeth Hannah Adam
author_sort Armin Niklas Flinspach
collection DOAJ
description The sedation management of patients with severe COVID-19 is challenging. Processed electroencephalography (pEEG) has already been used for sedation management before COVID-19 in critical care, but its applicability in COVID-19 has not yet been investigated. We performed this prospective observational study to evaluate whether the patient sedation index (PSI) obtained via pEEG may adequately reflect sedation in ventilated COVID-19 patients. Statistical analysis was performed by linear regression analysis with mixed effects. We included data from 49 consecutive patients. None of the patients received neuromuscular blocking agents by the time of the measurement. The mean value of the PSI was 20 (±23). The suppression rate was determined to be 14% (±24%). A deep sedation equivalent to the Richmond Agitation and Sedation Scale of −3 to −4 (correlation expected PSI 25–50) in bedside examination was noted in 79.4% of the recordings. Linear regression analysis revealed a significant correlation between the sedative dosages of propofol, midazolam, clonidine, and sufentanil (<i>p</i> < 0.01) and the sedation index. Our results showed a distinct discrepancy between the RASS and the determined PSI. However, it remains unclear to what extent any discrepancy is due to the electrophysiological effects of neuroinflammation in terms of pEEG alteration, to the misinterpretation of spinal or vegetative reflexes during bedside evaluation, or to other causes.
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spelling doaj.art-02ea2270ac1f4530acfd049a9019a19f2023-11-23T17:17:05ZengMDPI AGJournal of Clinical Medicine2077-03832022-06-011112349410.3390/jcm11123494Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDSArmin Niklas Flinspach0Sebastian Zinn1Kai Zacharowski2Ümniye Balaban3Eva Herrmann4Elisabeth Hannah Adam5Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, GermanyDepartment of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, GermanyDepartment of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, GermanyDepartment of Biostatistics and Mathematical Modelling, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, GermanyDepartment of Biostatistics and Mathematical Modelling, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, GermanyDepartment of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, GermanyThe sedation management of patients with severe COVID-19 is challenging. Processed electroencephalography (pEEG) has already been used for sedation management before COVID-19 in critical care, but its applicability in COVID-19 has not yet been investigated. We performed this prospective observational study to evaluate whether the patient sedation index (PSI) obtained via pEEG may adequately reflect sedation in ventilated COVID-19 patients. Statistical analysis was performed by linear regression analysis with mixed effects. We included data from 49 consecutive patients. None of the patients received neuromuscular blocking agents by the time of the measurement. The mean value of the PSI was 20 (±23). The suppression rate was determined to be 14% (±24%). A deep sedation equivalent to the Richmond Agitation and Sedation Scale of −3 to −4 (correlation expected PSI 25–50) in bedside examination was noted in 79.4% of the recordings. Linear regression analysis revealed a significant correlation between the sedative dosages of propofol, midazolam, clonidine, and sufentanil (<i>p</i> < 0.01) and the sedation index. Our results showed a distinct discrepancy between the RASS and the determined PSI. However, it remains unclear to what extent any discrepancy is due to the electrophysiological effects of neuroinflammation in terms of pEEG alteration, to the misinterpretation of spinal or vegetative reflexes during bedside evaluation, or to other causes.https://www.mdpi.com/2077-0383/11/12/3494critical carehypnotics and sedativesacute respiratory distress syndromesevere acute respiratory syndrome coronavirus 2electroencephalogramindex of consciousness-view monitor
spellingShingle Armin Niklas Flinspach
Sebastian Zinn
Kai Zacharowski
Ümniye Balaban
Eva Herrmann
Elisabeth Hannah Adam
Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDS
Journal of Clinical Medicine
critical care
hypnotics and sedatives
acute respiratory distress syndrome
severe acute respiratory syndrome coronavirus 2
electroencephalogram
index of consciousness-view monitor
title Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDS
title_full Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDS
title_fullStr Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDS
title_full_unstemmed Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDS
title_short Electroencephalogram-Based Evaluation of Impaired Sedation in Patients with Moderate to Severe COVID-19 ARDS
title_sort electroencephalogram based evaluation of impaired sedation in patients with moderate to severe covid 19 ards
topic critical care
hypnotics and sedatives
acute respiratory distress syndrome
severe acute respiratory syndrome coronavirus 2
electroencephalogram
index of consciousness-view monitor
url https://www.mdpi.com/2077-0383/11/12/3494
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