AESD is a childhood acute encephalopathy following severe febrile seizures.
Five out of 92 AESD patients had missense mutations either in SCN1A or SCN2A.
Two of the five mutations had been reported in Dravet syndrome.
None of the five patients were diagnosed with Dravet syndrome or GEFS+.
Mutations in SCN1A and SCN2A are a predisposing factor of AESD.