SCN5A and familial dilated cardiomyopathy: DCM has also been associated with mutations that affect Nav1.5 function, providing support to the argument that DCM could be considered as one of the phenotypes of cardiac sodium channelopathy (McNair et al., 2004; Olson et al., 2005; Ge et al., 2008; Nguyen et al., 2008; Morales et al., 2010; Laurent et al., 2012; Mann et al., 2012; Beckermann et al., 2014; Haas et al., 2014).