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Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
10:22

Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

Published on: December 6, 2016

[Juvenile myoclonic epilepsy]

Marte Roa Syvertsen1, Rune Markhus, Kaja Kristine Selmer

  • 1Nevrologisk avdeling, Drammen sykehus, Norway. marsyv@vestreviken.no

Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
|August 10, 2012
PubMed

Insights

Juvenile myoclonic epilepsy (JME) is a common epilepsy syndrome in youth. Effective treatment with valproate and avoiding triggers like sleep deprivation can achieve seizure freedom in 80% of patients.

Area of Science:

  • Neurology
  • Epileptology

Background:

  • Juvenile myoclonic epilepsy (JME) is a generalized epilepsy syndrome that begins in adolescence.
  • Accurate diagnosis and management are crucial due to potential misdiagnosis and treatment challenges.

Purpose of the Study:

  • To provide an updated review of the etiology, diagnosis, and treatment of JME.
  • To highlight diagnostic difficulties and optimal therapeutic strategies.

Main Methods:

  • A comprehensive literature review of original articles, meta-analyses, and reviews from PubMed.
  • Inclusion of authors' clinical experience with JME patients.

Main Results:

  • JME onset is in adolescence, characterized by myoclonias, generalized tonic-clonic seizures, and absences.
  • Characteristic EEG findings include 4-6 Hz polyspike waves, though focal abnormalities can occur.
  • Valproate treatment, alongside avoidance of seizure triggers (e.g., sleep deprivation), leads to seizure freedom in approximately 80% of patients.

Conclusions:

  • JME diagnosis can be challenging due to potential focal epilepsy features in semiology and EEG.
  • Misdiagnosis as focal epilepsy may lead to inappropriate antiepileptic drug choices, potentially worsening seizures.
Abstract

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