Abstract:Background
Long‐QT syndrome (LQTS) is a cardiac repolarization abnormality that can lead to sudden cardiac death. The most common causes are rare coding variants in the genes
KCNQ1
,
KCNH2
, and
SCN5A
. The data on LQTS epidemiology are limited, and information on expressivity and penetrance of pathogenic variants is sparse.
Methods and Results
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