Abstract
An examination was made of 967 initial and follow-up electroencephalograms of 371 children with clinically diagnosed cerebral concussion to determine whether the EEG could provide an objective measure of injury. For each patient, the degree and distribution of EEG abnormalities, as well as their rate of resolution, were correlated with the severity of clinically assessed injury. A close relationship was found between the severity of both initial and longitudinal EEG disturbances and the clinically suspected grade of concussion. Serial EEGs of individual patients showed a similar relationship between time elapsed since injury and degree of abnormality. The rate at which the sequence of EEG resolution took place varied in direct relation to the severity of concussion. It was concluded that the initial EEG and the rate and degree of resolution of EEG abnormalities, together with the time elapsed since injury, can provide objective and reliable information to the clinician for the establishment of the diagnosis and assessment of severity of cerebral concussion in children.
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