Children affected with SCN1A loss-of-function mutations experience frequent prolonged spontaneous seizures, developmental delays, cognitive and behavioural deficits as well as increased risk of Sudden Unexpected Death in Epilepsy (Dravet, 2011; Li et al., 2011; Skluzacek et al., 2011; Dravet and Oguni, 2013; Kearney, 2013; Cooper et al., 2016). This evidence concerns the gene SCN1A and epilepsy.