Friday, May 4, 2018

T-wave alternans in long QT syndrome

Siddharth Narayan Gadage

Annals of Pediatric Cardiology 2018 11(2):219-221

Long QT syndrome (LQTS) is a congenital disorder characterized by prolongation of QT interval in the electrocardiogram (ECG) and a propensity to develop ventricular arrhythmias, which may lead to syncope, cardiac arrest or sudden death. T-wave alternans (TWA), a phenomenon of beat-to-beat variability in the repolarization phase of the ventricles, has been closely associated with an increased risk of ventricular tachyarrhythmic events (VTE) and sudden cardiac death (SCD).
via Annals of Pediatric Cardiology

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