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Clinical dissection of early onset absence epilepsy in children and prognostic implications

Sergio Agostinelli1, Patrizia Accorsi, Francesca Beccaria

  • 1Child Epilepsy Center, Department of Pediatrics, University of Chieti, Chieti, Italy.

Epilepsia
|September 17, 2013
PubMed

Insights

Children with typical absence seizures meeting specific criteria have a better epilepsy course. Those not meeting criteria face higher relapse risks, indicating distinct prognoses for early-onset absence epilepsy.

Area of Science:

  • Pediatric Neurology
  • Epilepsy Research
  • Clinical Electrophysiology

Background:

  • Typical absence seizures (TAS) in early childhood present diagnostic challenges.
  • Distinguishing subtypes of early-onset absence epilepsy is crucial for prognosis.

Purpose of the Study:

  • To compare the electroclinical course of early-onset TAS based on adherence to Panayiotopoulos's criteria for childhood absence epilepsy (CAE).
  • To identify factors influencing seizure control and relapse in children with TAS starting before three years of age.

Main Methods:

  • A multicenter retrospective study analyzed children with TAS starting before age three.
  • Patients were classified as pure early onset absence epilepsy (P-EOAE) if meeting CAE criteria, or nonpure EOAE (NP-EOAE) if not.
  • Follow-up was standardized to 36 months, with stratification by antiepileptic drug regimen.

Main Results:

  • P-EOAE patients achieved earlier seizure control and had better seizure-free survival than NP-EOAE patients.
  • NP-EOAE patients on tritherapy showed increased risk of brain abnormalities or SLC2A1 mutations.
  • NP-EOAE patients had a significantly higher odds of relapse compared to P-EOAE patients.

Conclusions:

  • Early-onset TAS meeting Panayiotopoulos's CAE criteria generally follows a favorable epilepsy course.
  • Absence epilepsy not meeting these criteria is associated with a higher long-term risk of seizure relapse.
Abstract

Keywords:
Antiepileptic drugsChildhood absence epilepsyEarly onset absence epilepsyGLUT1 deficiencyTypical absence seizures

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