The ECG on the ward showed no sign of long or short QT (cQT time of 430 ms), and a heart rate of 86/min in sinus rhythm. A more detailed history of the event revealed that the patient had been ...

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).

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 ...

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 ...

These ECG voltage attenuations are of extracardiac mechanism, and impact the amplitude of QRS complexes, P-waves, and T-waves, occasionally resulting also in shortening of the QRS complex and QT ...