Abstract
The electroencephalogram (EEG) plays an important role in the evaluation of a child with developmental delay. An EEG is often required to classify seizures in children with developmental delay. Equally important is the role of the EEG in the identification of specific electroclinical syndromes in children who may or may not manifest seizures. Specific electroclinical syndromes include the acquired epileptiform aphasia syndrome, Landau-Kleffner syndrome, and electrical status epilepticus during slow wave sleep. Other clinical situations where the EEG offers diagnostic and prognostic information, such as subacute sclerosing encephalitis, progressive myoclonus epilepsies, Rett syndrome, and Lennox Gastaut syndrome are also discussed.
MeSH terms
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Aphasia / diagnosis
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Aphasia / physiopathology
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Cerebral Cortex* / physiopathology
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Child
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Developmental Disabilities / complications
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Developmental Disabilities / diagnosis*
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Developmental Disabilities / physiopathology
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Diagnosis, Differential
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Disease Progression
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Electroencephalography*
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Epilepsies, Myoclonic / diagnosis
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Epilepsies, Myoclonic / physiopathology
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Epilepsy / classification
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Epilepsy / complications
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Epilepsy / diagnosis*
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Epilepsy / physiopathology
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Humans
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Intellectual Disability / diagnosis
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Intellectual Disability / physiopathology
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Landau-Kleffner Syndrome / diagnosis
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Landau-Kleffner Syndrome / physiopathology
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Prognosis
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Regression, Psychology
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Rett Syndrome / diagnosis
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Rett Syndrome / physiopathology
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Sleep Stages / physiology
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Sleep Wake Disorders / diagnosis
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Sleep Wake Disorders / physiopathology
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Status Epilepticus / diagnosis
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Status Epilepticus / physiopathology
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Subacute Sclerosing Panencephalitis / diagnosis
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Subacute Sclerosing Panencephalitis / physiopathology
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Syndrome