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).

The QT interval is the time from the beginning of the QRS complex, representing ventricular depolarization, to the end of the T wave, resulting from ventricular repolarization. The normal QT ...

Several other ECG markers such as AT, premature atrial/ventricular complexes and prolonged QT have been associated with risk of stroke. However, they have not yet been utilized in strategies for ...

left axis deviation and conduction delays and findings suggestive or diagnostic of primary electrical diseases such as long QT syndrome and Wolff-Parkinson-White syndrome. The evaluation of abnormal ...

31 As such, the ECG must be examined critically for not only the length of the QT interval but also the look of the T-wave and T/U-wave morphologies. The QT interval is a fluid measurement that is ...

The Cardiospy analysis software provides ECG records of excellent quality ... The program performs rhythm analysis, ST, QT, AF, time and frequency based HRV, and it calculates HRT and uVTWA ...

We now have evidence that if you display an ECG in the right way, it can easily be interpreted by a patient. “Here, we’ve shown that it is simple for lay people to understand when they might be at ...

It has also been possible to obtain long-term ambulatory ECG recordings ... showed increased sudden death with few antiarrhythmics QT interval prolongation 4–6% 1.5-fold increase Myocardial ...