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Related Experiment Videos

Ictal EEG patterns in band heterotopia.

Arthur C Grant1, Jong M Rho

  • 1Comprehensive Epilepsy Program, Department of Neurology, University of California-Irvine, Neurodiagnostic Laboratory, Bldg. 22C, 101 The City Drive, Orange, CA 92868, U.S.A. grantac@uci.edu

Epilepsia
|April 16, 2002
PubMed
Summary

Band heterotopia (BH), a neuronal migration disorder, presents with seizures. This study found that seizure patterns in BH are similar to other generalized epilepsies, despite the abnormal grey matter.

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Area of Science:

  • Neuroscience
  • Neurology
  • Epileptology

Background:

  • Band heterotopia (BH), or double cortex syndrome, is a rare neuronal migration disorder.
  • It is characterized by a band of ectopic subcortical gray matter and associated cortical abnormalities.
  • Patients often experience psychomotor delay and intractable seizures.

Observation:

  • This study details the clinical, interictal, and ictal electroencephalogram (EEG) findings in two pediatric patients with BH and refractory epilepsy.
  • The focus was on characterizing the specific EEG patterns during seizures (ictal EEG).

Findings:

  • Ictal EEG patterns in patients with BH correlated strongly with their clinical seizure types.
  • No unique ictal EEG features specific to BH were identified.

Related Experiment Videos

  • Seizure behaviors and interictal EEG findings were consistent with symptomatic generalized epilepsies.

    • Implications:

    • The findings suggest that despite the underlying structural abnormality in BH, the electrographic manifestations of seizures are not distinct.
    • This implies that BH-related epilepsy can be managed using established protocols for symptomatic generalized epilepsies.
    • Further research may explore the precise mechanisms linking ectopic gray matter to seizure generation within this context.