Psychomotor EEG variant of Gibbs: an association with underlying structural pathology

Citation
Mj. Hennessy et al., Psychomotor EEG variant of Gibbs: an association with underlying structural pathology, CLIN NEU, 112(4), 2001, pp. 686-687
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Neurosciences & Behavoir
Journal title
CLINICAL NEUROPHYSIOLOGY
ISSN journal
1388-2457 → ACNP
Volume
112
Issue
4
Year of publication
2001
Pages
686 - 687
Database
ISI
SICI code
1388-2457(200104)112:4<686:PEVOGA>2.0.ZU;2-C
Abstract
Objective: To describe the association between a unilateral mid-temporal rh ythmic theta discharge ('psychomotor variant of Gibbs') with neuroimaging-d emonstrated underlying mass lesion. Methods: Standard routine awake and scalp electroencephalography, continuou s video-EEG monitoring and magnetic resonance brain imaging were employed i n the diagnostic work-up of a 9-year-old boy with a severe behavioural dist urbance and episodic outbursts of aggression. Results: EEG showed a unilateral mid-temporal rhythmic discharge which was continuous in drowsiness and which remained confined to the right hemispher e. MRI showed a lesion in the temporal horn of the right lateral ventricle displacing superiorly the white matter stem of the right temporal lobe. Conclusion: A rhythmic mid-temporal theta discharge, commonly regarded as a benign EEG variant, may, in some patients, reflect underlying structural p athology. Neuroimaging should be considered particularly when this EEG patt ern remains confined to one hemisphere. (C) 2001 Elsevier Science ireland L td. All rights reserved.