A prolonged QT interval has a variety of causes and can be a very serious ECG finding, as it may lead to the potentially fatal arrhythmia polymorphic ventricular tachycardia (Torsades de Pointes).

Women have a longer QT interval than men. Lower heart rates also result in a longer QT interval. A quick way to distinguish a prolonged QT interval is to examine if the T wave ends beyond the ...

which is the heart reading available on a smart watch. A spectrum of colour is applied to the area under the ECG signal from blue to red. The more warm colours you can see, the greater the risk of ...

The electrocardiogram (ECG) characteristics of this patient indicated the likelihood of LQTS1. Polymorphic ventricular extrasystolies and episodes of polymorphic non-sustained ventricular ...

The horizontal axis shows the time (in hours) starting after the third baseline ECG. The vertical axis represents ... Panel D shows the delta QTc of long-QT patients after drinking grapefruit ...

Torsades de pointes (TdP) arrhythmia is a potentially life-threatening cardiac disorder that is often associated with a prolonged QT interval in the surface ECG ... The heart is a complex organ ...