Book contents
- How to Read an EEG
- Reviews
- How to Read an EEG
- Copyright page
- Dedication
- Contents
- Figure Contributions
- Foreword to the First Edition
- Preface
- How to Read This Book
- Part I Basics
- Part II Interpretation
- Part III Specific Conditions
- Chapter 15 Seizure Mimics
- Chapter 16 Types of Seizures
- Chapter 17 Epilepsy
- Chapter 18 Epilepsy Syndromes
- Chapter 19 Lesions and Encephalopathy
- Chapter 20 Status Epilepticus
- Chapter 21 Postcardiac Arrest
- Appendix: How to Write a Report
- Index
- References
Chapter 21 - Postcardiac Arrest
from Part III - Specific Conditions
Published online by Cambridge University Press: aN Invalid Date NaN
Book contents
- How to Read an EEG
- Reviews
- How to Read an EEG
- Copyright page
- Dedication
- Contents
- Figure Contributions
- Foreword to the First Edition
- Preface
- How to Read This Book
- Part I Basics
- Part II Interpretation
- Part III Specific Conditions
- Chapter 15 Seizure Mimics
- Chapter 16 Types of Seizures
- Chapter 17 Epilepsy
- Chapter 18 Epilepsy Syndromes
- Chapter 19 Lesions and Encephalopathy
- Chapter 20 Status Epilepticus
- Chapter 21 Postcardiac Arrest
- Appendix: How to Write a Report
- Index
- References
Summary
This chapter focuses on the EEG findings after cardiac arrest. The EEG is useful to make prognostic estimations and evaluate for nonconvulsive seizures postcardiac arrest. Unfavorable EEG patterns portend poor outcomes whereas early improvements including restoration of physiological rhythms is associated with better outcomes. The EEG has limitations and should not be used in isolation to make prognostic estimations. Highly malignant EEG patterns are specifically associated with poor outcomes. Individual malignant patterns have low sensitivity and specificity for poor outcomes. Benign patterns (absence of malignant features) suggest favorable outcomes. Seizures and status epilepticus are common postcardiac arrest and may contribute to poor outcomes. Myoclonic status epilepticus is characterized by prolonged continuous cortical myoclonus. Early myoclonic status epilepticus post cardiac arrest is typically associated with poor prognosis. The American Academy of Neurology no longer recommends the use of EEG in the determination of death by neurological criteria (brain death). [150 words/943 characters]
Keywords
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- How to Read an EEG , pp. 317 - 326Publisher: Cambridge University PressPrint publication year: 2025
References
Crepeau, AZ, Rabinstein, AA, Fugate, JE, et al. Continuous EEG in therapeutic hypothermia after cardiac arrest: prognostic and clinical value. Neurology. 2013 Jan 22;80(4):339–44.10.1212/WNL.0b013e31827f089dCrossRefGoogle ScholarPubMed
Jehi, LE. The role of EEG after cardiac arrest and hypothermia: EEG after cardiac arrest. Epilepsy Currents. 2013 Jul;13(4):160–1.10.5698/1535-7597-13.4.160CrossRefGoogle ScholarPubMed
Westhall, E, Rossetti, AO, van Rootselaar, AF, et al. Standardized EEG interpretation accurately predicts prognosis after cardiac arrest. Neurology. 2016 Apr 19;86(16):1482–90.10.1212/WNL.0000000000002462CrossRefGoogle ScholarPubMed
Hofmeijer, J, Beernink, TM, Bosch, FH, et al. Early EEG contributes to multimodal outcome prediction of postanoxic coma. Neurology. 2015 Jul 14;85(2):137–43.CrossRefGoogle ScholarPubMed
Rittenberger, JC, Popescu, A, Brenner, RP, Guyette, FX, Callaway, CW. Frequency and timing of nonconvulsive status epilepticus in comatose post-cardiac arrest subjects treated with hypothermia. Neurocritical Care. 2012 Feb 1;16(1):114–22.10.1007/s12028-011-9565-0CrossRefGoogle ScholarPubMed
Rossetti, AO, Logroscino, G, Liaudet, L, et al. Status epilepticus: an independent outcome predictor after cerebral anoxia. Neurology. 2007 Jul 17;69(3):255–60.CrossRefGoogle ScholarPubMed
Sandroni, C, Cariou, A, Cavallaro, F, et al. Prognostication in comatose survivors of cardiac arrest: an advisory statement from the European Resuscitation Council and the European Society of Intensive Care Medicine. Intensive Care Medicine. 2014 Dec 1;40(12):1816–31.10.1007/s00134-014-3470-xCrossRefGoogle ScholarPubMed
Greer, DM, Kirschen, MP, Lewis, A, et al. Pediatric and adult brain death/death by neurologic criteria consensus guideline: report of the AAN guidelines subcommittee, AAP, CNS, and SCCM. Neurology. 2023 Dec 12;101(24):1112–32.10.1212/WNL.0000000000207740CrossRefGoogle Scholar
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