SCN1A and encephalopathy, progressive, early-onset, with brain edema and/or leukoencephalopathy: Importantly, we show that SCN1A mutation‐induced genome‐wide transcriptomic dysregulation must be assayed in brain tissue from Dravet syndrome model animals that have become susceptible to but have not yet developed seizures, as seizure‐induced transcriptomic changes will likely confound SCN1A mutation‐induced transcriptomic changes, once seizures have developed.