CACNA1C and Familial short QT syndrome: After reports on familial SQTS by Gussak et al. in 2000 [142] and by Gaita et al. in 2003 [143], disease-causing mutations in KCNH2 (SQTS type 1, STQ1) [144], KCNQ1 (STQ2) [145], KCNJ2 (STQ3) [146], and CACNA1C andCACNB2b (STQ4 and STQ5) [131] were reported in 2004–2007.