Epilepsy surgery for early infantile epileptic encephalopathy (ohtahara syndrome)

Saleem I Malik1, Carlos A Galliani, Angel W Hernandez

  • 11Department of Neurology, Cook Children's Medical Center, Fort Worth, TX, USA.

Journal of Child Neurology
|November 13, 2012
PubMed

Insights

Epilepsy surgery offers a favorable outcome for infants with Ohtahara syndrome, a severe early infantile epileptic encephalopathy. Surgical intervention resulted in seizure freedom or infrequent seizures and improved development in most patients.

Area of Science:

  • Neurology
  • Pediatric Neurology
  • Epileptology

Background:

  • Ohtahara syndrome is the earliest and most severe form of age-dependent epileptic encephalopathies.
  • It is characterized by tonic spasms, focal motor seizures, suppression-burst EEG patterns, and pharmaco-resistance.
  • The prognosis is typically dismal with high mortality and severe impairment in survivors.

Purpose of the Study:

  • To evaluate the effectiveness of epilepsy surgery in infants diagnosed with Ohtahara syndrome.
  • To compare surgical outcomes with those of pharmacotherapy-managed patients.

Main Methods:

  • A retrospective review of 11 infants meeting Ohtahara syndrome criteria who underwent epilepsy surgery in infancy.
  • Data was compiled from 9 literature cases and 2 cases from the authors' institution.

Main Results:

  • Seven of 11 infants (63.6%) achieved complete seizure freedom (Engel class IA).
  • Four infants (36.4%) experienced rare to infrequent seizures (Engel class IIB).
  • All surgically treated infants demonstrated catch-up development.

Conclusions:

  • Epilepsy surgery is a highly effective treatment for selected infants with Ohtahara syndrome.
  • Surgical management offers a significantly more favorable outcome compared to pharmacotherapy, with reduced mortality and improved developmental trajectories.

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