In this study, the authors underlined the following clinical features of DS: the first seizure is febrile in only 55% of patients, and 3% of patients never have seizures with fever; more than 50% of patients manifest with a tonic-clonic seizure, and only 35% have hemiclonic seizure; 1/3 of patients complain of the status epilepticus while 7% never have this feature; in patients with heterozygous SCN1A pathogenetic variants the disorder may occur up to 19 months (58). Here, SCN1A is linked to Dravet syndrome.