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Atypical EEG abnormalities in children with benign partial (Rolandic) epilepsy
Insights
This study found that the prognosis for children with centrotemporal spike foci (Rolandic epilepsy) is good, regardless of focus location. Focal temporal low-frequency activity, however, negatively impacts outcomes.
Area of Science:
- Neurology
- Pediatric Epilepsy
- Clinical Neurophysiology
Background:
- Rolandic epilepsy, a common childhood epilepsy, is characterized by centrotemporal spike foci.
- Its prognosis and diagnostic criteria, especially borderline cases, require further clarification.
Purpose of the Study:
- To determine the prognostic borderlines of benign childhood epilepsy with centrotemporal spike foci ('Rolandic epilepsy').
- To evaluate the long-term outcomes of patients with epilepsy and centrotemporal or other spike foci.
Main Methods:
- Re-evaluation of 43 adult patients previously diagnosed with epilepsy and centrotemporal or other spike foci.
- Analysis of electroencephalogram (EEG) data and clinical outcomes.
Main Results:
- Prognosis was favorable irrespective of spike focus location (centrotemporal or elsewhere).
- Synchronous paroxysmal activity did not worsen the prognosis.
- Focal temporal low-frequency activity was associated with a poorer prognosis.
Conclusions:
- Rolandic epilepsy shares favorable prognostic features with other age-dependent epilepsies.
- Borderline cases between Rolandic epilepsy and other childhood epilepsies likely exist.
- Focal temporal low-frequency activity may indicate a different epilepsy subtype or severity.
Abstract:
In order to determine the borderlines of the benign partial epilepsy of children with centrotemporal spike foci ('Rolandic epilepsy') 43 patients with epilepsy and spike foci in the centrotemporal region or elsewhere drawn from the EEG files were re-evaluated as adults. The prognosis was equally good whether the spike focus was in the centrotemporal region or elsewhere, and synchronous paroxystic activity did not make the prognosis worse, but focal temporal low frequency activity did. It is suggested that borderline cases exist between 'Rolandic epilepsy' and other age dependent epilepsies.