epil_0009.docx - associated with brain maturation When they...

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associated with brain maturation. When they occur with high frequency in school, they often lead to poor performance. During short absences the patient may be completely motionless. With longer absences, subtle automatisms are often observed such as blinking. When used correctly, the older term petit mal is synonymous with absence seizures. However, the term is often applied incorrectly, as when a patient with complex partial seizures is said to have petit mal staring spells. The EEG signature of a typical absence seizure is an abrupt onset and sudden cessation of a bilaterally synchronous and regular discharge recorded over widespread areas of the scalp (Figure 3). The discharge consists of spike- or multiple spike-and-slow wave complexes at a frequency of about 3 Hz. Atonic seizures Atonic seizures (drop attacks) manifest themselves as a sudden loss of tone in postural muscles. In a mild variant, only the head drops.
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  • Fall '15
  • Seizure, absence seizure, seizures Atonic seizures, involuntary muscle jerks, massive myoclonic jerks

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