SCN5A and sudden infant death syndrome: Studying a cohort of 201 Norwegian SIDS victims, Arnestad et al. have demonstrated that genetic variants in LQTS genes are present in 9.5% of SIDS victims: they were found in SCN5A (50%), KCNQ1 (19%), KCNH2 (19%), CAV3 (11%), and KCNE2 (4%)27.