In the present study, we detected two mutations of TECRL gene (mut1/m1: NM_001010874.5: c.587G > A p.Arg196Gln and mut2/m2:NM_001010874.5: c.868C > T p.Pro290Ser) in a 12-year-old girl with CPVT and LQTS who had cardiac and respiratory arrest using WES. Here, TECRL is linked to familial long QT syndrome.