childhood absence epilepsy type 2
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Etiology
Genetics
- associated with defects in GABRG2
Clinical manifestations
- onset at age 6-7 years
- frequent absence seizures (several per day)
- during adolescence, tonic-clonic & myoclonic seizures develop
- may occur in combination with febrile seizures
Diagnostic procedures
- electroencephalogram (EEG):
- bilateral, synchronous, symmetric 3-Hz spike waves on EEG