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[Epilepsy with centro-temporal spikes and parietal spikes: comparative study]

L C Fonseca1, G M Tedrus

  • 1Departamento de Neuropsiquiatria, Faculdade de Ciências Médicas, Pontifíca Universidade Católica de Campinas, Brasil.

Arquivos De Neuro-Psiquiatria
|June 1, 1995
PubMed
Summary

This study differentiates benign parietal epilepsy (PS) from benign partial epilepsy with centro-temporal spikes (CTS) in children. Key differences include age, seizure types, and EEG responses, suggesting PS is a distinct epilepsy syndrome.

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Benign childhood epilepsy with centrotemporal spikes: an ictal EEG.

Clinical EEG and neuroscience·2009

Area of Science:

  • Pediatric Neurology
  • Epileptology
  • Clinical Neurophysiology

Background:

  • Benign partial epilepsy with centro-temporal spikes (BECTS) is a well-defined epilepsy syndrome.
  • Controversies exist regarding a distinct benign parietal epilepsy (BPE).
  • This study investigates differences between BECTS and epilepsy with parietal spikes (PS) in children without brain damage.

Purpose of the Study:

  • To compare clinical and EEG features of children with centro-temporal spikes (CTS) and parietal spikes (PS).
  • To determine if epilepsy with parietal spikes (PS) represents a distinct syndrome from CTS.

Main Methods:

  • Retrospective study of 164 children with epilepsy and spikes localized to centro-temporal (CTS) or parietal (PS) regions.
  • Comparison of patient age, age at seizure onset, seizure types, and EEG reactivity to percussion.

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  • EEG reactivity assessed by evoked spikes following manual or pedal stimulation.

    • Main Results:

    • Patients with PS predominantly occurred before age 6, while CTS patients were older.
    • Oropharyngeal/facial motor seizures were more common in CTS (44.1%) than PS (16.9%).
    • EEG showed evoked high-voltage potentials in 39.5% of PS patients versus 3.5% of CTS patients.

    Conclusions:

    • Epilepsy with parietal spikes (PS) in neurologically normal children differs significantly from epilepsy with centro-temporal spikes (CTS).
    • Differences observed in age, seizure types, and EEG reactivity support PS as a distinct epileptic syndrome.
    • Further research is warranted to fully characterize benign parietal epilepsy.