Atypical absence seizures often accompany clusters of myoclonic and/or myoclonic-atonic seizures. In Doose syndrome, atypical absence seizures may be just one manifestation of this mixed seizure disorder. They can occur many times a day and are often mistaken for daydreaming or look as though the child is zoning out or “not with it”. Like absence seizures, it can appear to observers as though the child is daydreaming or switching off so it may be hard to distinguish from the child’s usual behavior and therefore difficult to detect. The EEG does not have the classic three-per-second spike and wave pattern seen in simple absence seizures. Atypical absence seizures are similar to absence seizures but may have more pronounced motor symptoms such as tonic (stiffening) or clonic (jerking) spells or may have automatisms (involuntary behaviors) as seen in complex partial seizures. The child will stare, as with an absence seizure, but during an event, he/she will be somewhat responsive. Atypical absence seizures are similar to absence seizures but, as the name suggests, they are unusual or not typical.
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