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Syndrome reference sheet
Generated 12 Oct 2026
Pediatrics · Pediatrics / Pediatric neurology Dravet syndrome
Also known as: Severe myoclonic epilepsy of infancy
Epileptic encephalopathy with febrile seizure onset.
- Medical specialty
- Pediatrics
- Subspecialty
- Pediatrics / Pediatric neurology
- Sex & age distribution
- Male: affected; Female: affected, equal; Children: yes, onset in first year
- Gene(s) involved
- GABRG2, PCDH19, SCN1A, SCN1B
Etiology & mechanism
SCN1A loss of function.
Gene(s) involved (4)
GABRG2PCDH19SCN1ASCN1B
Symptoms & signs (5)
ataxiadevelopmental regressionmyoclonusprolonged febrile seizuressudden unexpected death in epilepsy