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EEG rhythm of alpha frequency in a 22-month-old child after strangulation

From the Division of Pediatric Neurology, Department of Pediatrics (Dr. Collins), and the Division of Electroencephalography and Clinical Neurophysiology (Dr. Chatrian), Departments of Laboratory Medicine and Neurplogical Surgery, University of Washington School of Medicine, Seattle, WA.

A 22-month-old child suffered accidental strangulation, which rendered him comatose with intermittent generalized tonic-clonlc seizures. His electroencephalogram (EEG) displayed widespread activity of alpha frequency unreactive to sensory stimuli. Upon clinical recovery, a slower posterior EEG rhythm, attenuated by eye opening, was detected, which was more consistent with the patient's age. This observation is remarkable, because of the rarity of reports of an alpha pattern after cerebral anoxia in young children and the subsequent EEG and clinical evolutions.

Address correspondence and reprint requests to Dr. Chatrian, Division of EEG, NN-283 University Hospital, SB-10, Seattle, WA 98195.

Accepted for publication March 4, 1980.