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Electroencephalogram Abnormalities in Children with Autism Spectrum Disorders.

Reinhold, Judy A.; Molloy, Cynthia A.; Manning-Courtney, Patricia
Journal of Neuroscience Nursing: June 2005
Electroencephalogram Abnormalities in Children with Autism Spectrum Disorders: PDF Only

colon; Children with an autism spectrum disorder (ASD) often are evaluated with electroencephalogram (EEG) studies to assess their risk for seizures or other underlying abnormalities. Their risk is estimated at 7%-42%. EEG studies were conducted on a subgroup of children while following established practice parameters for evaluating children for ASD. Abnormal EEG results were obtained in 85 (27%) of the 316 children evaluated for ASD. Within the subset of abnormal results, 64 children had autism, 10 had an ASD or milder presentation, 6 had another developmental disorder, 3 had Rett syndrome, 1 had Down syndrome, and 1 had Wolf-Hirshhorn syndrome. The abnormal EEG findings included epileptiform abnormalities in 55 patients (65%), and slowing in only 13 patients (15%). The focality of the epileptiform findings included 26 (30%) in the temporal areas, 24 (28%) in the central area, 20 (23%) in the frontal area, and 7 (8%) in the occipital area. These findings confirm the importance of ongoing medical follow-up for children with ASDs, especially for those with abnormal EEG results.

(C) 2005 American Association of Neuroscience Nurses