KCNQ1 and familial long QT syndrome: As for genetic variants identified in genes with clinical validities other than definitive, all were reclassified to VUS, LB, or B except for two variants identified in genes with no association to the patient’s phenotype: a KCNQ1 variant identified in a patient with BrS, which vas considered LP in a LQTS context; and a PKP2 variant identified in a patient with LQTS, which was considered P in an ACM context.