Rs45471994

rs45471994, also known as Val232Ile or V232I, is a SNP in the cardiac sodium channel SCN5A gene.

Some individuals carry two mutations on the same (gene) allele, consisting of rs45471994(A) and rs41313031(A). When exposed to lidocaine, these "double mutant" individuals may develop ventricular tachycardia consistent with Brugada syndrome.

Lidocaine-induced Brugada syndrome phenotype linked to a novel double mutation in the cardiac sodium channel.

An international compendium of mutations in the SCN5A-encoded cardiac sodium channel in patients referred for Brugada syndrome genetic testing.