Abstract
ABSTRACT.Spikes are commonly found in association with K complexes in patients with primary generalized epilepsy. A mixture of spikes and (unusually abundant) sleep spindles, however, is rather unique in clinical EEG. Such a blend of spikes and spindles was the hallmark of a sleep tracing in a 10-year-old boy with recent onset of seizures. Seizure type and the waking EEG suggested frontal (especially left frontal) origin of the seizures. The history and clinical findings revealed a mild encephalopathy, presumably caused by prematurity and associated with a moderate type of autism. Computed tomography (CT) findings were unremarkable. The combination of frontal lobe epilepsy with mixed spindles and spikes is not readily understood and deserves attention. The overabundance of spindles could be related to the pattern known as “extreme spindles.”
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