Nonconvulsive status epilepticus in adults - Insights into the invisible

Raoul Sutter, Saskia Semmlack, Peter W Kaplan

Research output: Contribution to journalArticle

Abstract

Nonconvulsive status epilepticus (NCSE) is a state of continuous or repetitive seizures without convulsions. Owing to the nonspecific symptoms and considerable morbidity and mortality associated with NCSE, clinical research has focused on early diagnosis, risk stratification and seizure termination. The subtle symptoms and the necessity for electroencephalographic confirmation of seizures result in under-diagnosis with deleterious consequences. The introduction of continuous EEG to clinical practice, and the characterization of electrographic criteria have delineated a number of NCSE types that are associated with different prognoses in several clinical settings. Epidemiological studies have uncovered risk factors for NCSE; knowledge of these factors, together with particular clinical characteristics and EEG observations, enables tailored treatment. Despite these advances, NCSE can be refractory to antiepileptic drugs, necessitating further escalation of treatment. The presumptive escalation to anaesthetics, however, has recently been questioned owing to an association with increased mortality. This Review compiles epidemiological, clinical and diagnostic aspects of NCSE, and considers current treatment options and prognosis.

Original languageEnglish (US)
Pages (from-to)281-293
Number of pages13
JournalNature Reviews Neurology
Volume12
Issue number5
DOIs
StatePublished - May 1 2016

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Status Epilepticus
Seizures
Electroencephalography
Mortality
Anticonvulsants
Anesthetics
Epidemiologic Studies
Early Diagnosis
Morbidity
Research

ASJC Scopus subject areas

  • Clinical Neurology
  • Cellular and Molecular Neuroscience

Cite this

Nonconvulsive status epilepticus in adults - Insights into the invisible. / Sutter, Raoul; Semmlack, Saskia; Kaplan, Peter W.

In: Nature Reviews Neurology, Vol. 12, No. 5, 01.05.2016, p. 281-293.

Research output: Contribution to journalArticle

Sutter, Raoul ; Semmlack, Saskia ; Kaplan, Peter W. / Nonconvulsive status epilepticus in adults - Insights into the invisible. In: Nature Reviews Neurology. 2016 ; Vol. 12, No. 5. pp. 281-293.
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