EEG in Epilepsy: Current Perspectives

The electroencephalogram (EEG) plays an important diagnostic role in epilepsy and provides supporting evidence of a seizure disorder as well as assisting with classification of seizures and epilepsy syndromes. Emerging evidence suggests that the EEG may also provide useful prognostic information reg...

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Bibliographic Details
Published in:Canadian journal of neurological sciences 1999-11, Vol.26 (4), p.255-262
Main Authors: Sundaram, M., Sadler, R.M., Young, G.B., Pillay, N.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Electrodiagnosis. Electric activity recording
Electroencephalography - trends
Epilepsy - diagnosis
Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy
Humans
Investigative techniques, diagnostic techniques (general aspects)
Medical sciences
Nervous system
Nervous system (semeiology, syndromes)
Neurology
Neurology - trends
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Description
Summary:The electroencephalogram (EEG) plays an important diagnostic role in epilepsy and provides supporting evidence of a seizure disorder as well as assisting with classification of seizures and epilepsy syndromes. Emerging evidence suggests that the EEG may also provide useful prognostic information regarding seizure recurrence after a single unprovoked attack and following antiepileptic drug withdrawal. Continuous EEG video telemetry monitoring has an established role in the diagnosis of non-epileptic pseudo-seizures and in localizing the seizure focus for epilepsy surgery. Newer tools such as EEG mapping and magneto-encephalogram, although still investigational, appear potentially useful for defining the seizure focus in epilepsy. This review examines the traditional concepts of clinical EEG in the light of newly available data.
ISSN:0317-1671
2057-0155
DOI:10.1017/S0317167100000342