SCN1A (#OMIM 182389), encoding for the α‐subunit of the voltage‐gated sodium channel NaV1.1, was first associated with Dravet syndrome (DS, #OMIM 607208) in the 2000s.4 The gene discussed is SCN1A; the disease is encephalopathy, progressive, early-onset, with brain edema and/or leukoencephalopathy.