Most recently, few cases of SCN8A-related epilepsies with “milder” phenotype were associated with benign familial infantile seizures-5 (BFIS5; OMIM #617080) (Anand et al., 2016; Gardella et al., 2016; Han et al., 2017). This evidence concerns the gene SCN8A and seizures, benign familial infantile, 5.