Key clinical point: Two-thirds of severe epilepsies of infancy were classified as prototypic syndromes.

Major finding: Nearly one in six of severe epilepsies of infancy identified in a major study involved one of the neonatal or early infantile syndromes.

Study details: This was a population-based epidemiologic study of the incidence, etiologies, and outcomes of all cases of severe epilepsies of infancy occurring in the Australian state of Victoria in a 2-year period.

Disclosures: The presenter reported having no financial conflicts regarding this study, which was supported by governmental research grants.