Current perspectives on congenital long QT syndrome.

Abstract excerpt

Congenital long QT syndrome is a genetic disorder characterized by prolonged QT interval on electrocardiogram and increased risk of sudden cardiac death from ventricular arrhythmias. In long QT syndrome, genes that encode for the various cardiac ion channels or regulatory proteins of these channels are mutated. The various mutations individually lead to a disruption of the normal cardiac myocyte action potential,...

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