Παρασκευή 4 Μαΐου 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).

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