• F K Alehan, L D Morton, and J M Pellock.
• Division of Child Neurology, Medical College of Virginia, Virginia Commonwealth University, Richmond 23298-0211, USA.
• J. Child Neurol. 2001 Jul 1;16(7):484-7.

AbstractTo assess the role of electroencephalography (EEG) in the pediatric emergency department, we reviewed the records of all patients having an EEG in the pediatric emergency department of our hospital between 1995 and 1997. EEG findings, clinical presentations, and follow-up data were analyzed, and patients were distributed into three groups according to clinical presentation: group 1 included patients with new-onset seizures, group 2 included patients with known epilepsy presenting with worsening seizures and altered mentation, and group 3 comprised patients with acute confusional states. Overall, 56 patients with 57 EEGs were included. In group 1 (n = 36), 20 (55.6%) had an abnormal EEG. The risk of recurrence was much higher in children with abnormal EEGs (80% vs. 31%) (P < .01). In retrospect, among all of the patients receiving the diagnosis of epilepsy, 76% had an abnormal emergency department EEG. Four in group 2 (n = 14) and one in group 3 (n = 7) were proven to have nonconvulsive status epilepticus and were treated accordingly. No patients in group 1 had nonconvulsive status epilepticus. Ongoing seizures were promptly excluded in the remainder. The EEG directly contributed to the diagnosis in 84% of all referrals in the pediatric emergency department, either being abnormal and leading to a diagnosis of a seizure disorder or confirming low suspicion for seizures. Thus, a prompt EEG should be considered in children with new-onset seizures and unexplained altered consciousness.

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