This results in a reduced repolarizing reserve which may result in LQTS2 and sudden cardiac death.
[ncbi.nlm.nih.gov]
Overview Long QT syndrome (LQTS ) is either an inherited (congenital) or acquired disorder of the electrical system of the heart that may result in sudden cardiac death (SCD
[washingtonhra.com]
These cardiac arrhythmias may result in recurrent syncope, seizure, or sudden death (Jongbloed et al., 1999, pubmed:10220144 ). [From OMIM:192500, 2016.06.07]
[flybase.org]