In addition, the SCN4A, SCN5A, and SCN10A genes that encode the skeletal muscle NaV1.4, the cardiac NaV1.5 and the PNS NaV1.8 channels, respectively, are associated with other channelopathies (England and de Groot, 2009; Fouda et al., 2022). Here, SCN5A is linked to channelopathy.