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Non-neurologic Causes of Nonconvulsive Status Epilepticus/Nonconvulsive Seizures

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Continuous EEG Monitoring

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Abstract

Nonconvulsive status epilepticus (NCSE) is an underdiagnosed condition due to its minimal or inconspicuous clinical presentation. With increasing use of continuous electroencephalogram (EEG), NCSE has been diagnosed more frequently in critically ill patients. In 2012, the Neurocritical Care Society defined NCSE as seizure activity on EEG that is continuous or recurrent without return to baseline between seizures for 5 or more minutes that is not associated with convulsive activity. In acutely ill patients, NCSE often follows convulsive status epilepticus and presents with severely impaired mental status with or without subtle motor movements as well as other positive or negative signs [1]. (See Chap. 5 for further NCSE classification). Nonconvulsive seizures (NCS)/NCSE have been reported in 8–21 % of critically ill patient populations [2–4]. Delayed diagnosis and treatment of NCSE may lead to increased mortality which has been reported to be as high as 52 % in critically ill patients [2, 5].

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Authors and Affiliations

  1. Department of Neurology, University of Alabama at Birmingham, UAB Epilepsy Center, 1719 6th Avenue South, CIRC 312, Birmingham, AL, 35294, USA

    Yara Nazzal MD & Jennifer L. DeWolfe DO

Authors
  1. Yara Nazzal MD
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  2. Jennifer L. DeWolfe DO
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Correspondence to Jennifer L. DeWolfe DO .

Editor information

Editors and Affiliations

  1. Neurology, Duke University Medical Center Neurology, Durham, North Carolina, USA

    Aatif M. Husain

  2. Neurology, Duke University Medical Center, Durham, North Carolina, USA

    Saurabh R. Sinha

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Nazzal, Y., DeWolfe, J.L. (2017). Non-neurologic Causes of Nonconvulsive Status Epilepticus/Nonconvulsive Seizures. In: Husain, A., Sinha, S. (eds) Continuous EEG Monitoring. Springer, Cham. https://doi.org/10.1007/978-3-319-31230-9_20

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  • DOI: https://doi.org/10.1007/978-3-319-31230-9_20

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-31228-6

  • Online ISBN: 978-3-319-31230-9

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