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Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
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Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

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Epidemiology of severe myoclonic epilepsy of infancy

D L Hurst1

  • 1Department of Medical and Surgical Neurology, Texas Tech University Health Sciences Center, Lubbock 79430.

Epilepsia
|July 1, 1990
PubMed

Insights

Severe myoclonic epilepsy of infancy (SMEI) is a rare epilepsy syndrome. Research suggests its incidence is approximately 1 in 40,000 children, with certain medications showing promise for treatment.

Area of Science:

  • Neurology
  • Pediatric Neurology
  • Epilepsy Research

Background:

  • Severe myoclonic epilepsy of infancy (SMEI) is an emerging epileptic syndrome.
  • It presents with prolonged febrile seizures, progressing to intractable mixed-myoclonic seizures and psychomotor retardation.
  • Current treatments for myoclonic epilepsy, including valproate, suximides, and benzodiazepines, are being investigated for SMEI.

Purpose of the Study:

  • To identify the incidence of Severe Myoclonic Epilepsy of Infancy (SMEI) within a large cohort.
  • To provide an updated epidemiological understanding of this rare epilepsy syndrome.

Main Methods:

  • Analysis of seizure data from the National Institute of Neurological and Communicative Disorders and Stroke Collaborative Perinatal Project (NCPP).
  • Identification of individuals diagnosed with SMEI within the NCPP cohort.

Main Results:

  • One case of SMEI was identified in the NCPP cohort.
  • This finding suggests an incidence rate of approximately 1 in 40,000 children for SMEI.
  • This incidence estimate is corroborated by data from Texas Tech University Health Sciences Center.

Conclusions:

  • The incidence of Severe Myoclonic Epilepsy of Infancy (SMEI) is estimated to be around 1 in 40,000 children.
  • Further research and clinical observation are supported by these epidemiological findings.

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