A case of Dravet syndrome with a novel SCN1A gross deletion involving the promoter region

Here we present a case of Dravet syndrome in which a novel heterozygous deletion involving the promoter region of the SCN1A gene was identified using next-generation sequencing and multiple ligation-dependent probe amplification. This microdeletion is believed to reduce SCN1A transcription, leading to haploinsufficiency. This case highlights the importance of early genetic analysis, including that of promoter regions, before the diagnostic criteria are met for the induction of specific treatments.