Table 1

Genotype and mutation characteristics among 10 children with long QT syndrome and water-triggered cardiac events

SubjectLQTS type (gene)Mutation typeGene mutation
1Unknown
2LQTS 1 (KCNQ1)Missense—novelS566F
3LQTS 1 (KCNQ1)Missense—novelR360G
4LQTS 1 (KCNQ1)Frameshift—novelS333CfsX129
5LQTS 1 (KCNQ1)MissenseS546L
6LQTS 1 (KCNQ1)MissenseG168R
7LQTS 1 (KCNQ1)MissenseG316E
8LQTS 1 (KCNQ1)MissenseR243C
9LQTS 1 (KCNQ1)MissenseL266P
10LQTS 1 (KCNQ1)MissenseR518X