Women have a higher predisposition to genetic mutations that potentiate TdP and have a higher risk of TdP with Long QT syndrome (LQTS) type 1 and type 2, caused by mutations in potassium channel gene KCNQ1 (KvLQT1) and mutations in potassium channel gene KCNH2 (also known as hERG), respectively (19, 20). This evidence concerns the gene KCNQ1 and torsades de pointes.