The EEG of status epilepticus

Research output: Contribution to journalArticle

Abstract

Gastaut noted that there are as many forms of status epilepticus (SE) as there are seizure types. The pleomorphic EEG patterns reflect this wide variety of clinical types. The different electroclinical types of status epilepticus share EEG characteristics including rhythmic activity, epileptiform discharges, and often a waxing and waning evolution. Gray zones of interpretation exist in the form of runs of epileptiform periodic discharges, typically of lower frequency, and lesser temporal variability. In diagnosing SE, clinical correlation and response to parenteral anti-epileptic drugs (AEDs) are of particular importance. Accurate diagnosis of electroclinical SE type is essential, because it determines prognosis and dictates the intensity of therapeutic management. Some patients with benign forms of SE may benefit from nonparenteral treatment, and be followed up clinically and by spot EEGs. Conversely, intensive care unit management with anesthesia and continuous monitoring, and parenteral AEDs may be required for refractory convulsive SE.

Original languageEnglish (US)
Pages (from-to)221-229
Number of pages9
JournalJournal of Clinical Neurophysiology
Volume23
Issue number3
DOIs
StatePublished - Jun 1 2006

Keywords

  • BiPLED
  • EEG
  • Electrographic seizures
  • Encephalopathy
  • GPEDs
  • Nonconvulsive status epilepticus
  • PLEDs
  • Periodic discharges
  • Periodic waves
  • Triphasic waves

ASJC Scopus subject areas

  • Physiology
  • Neurology
  • Clinical Neurology
  • Physiology (medical)

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