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 ...

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 ...

However, the 12-lead ECG remains the universal initial diagnostic test in the evaluation of LQTS and is subject to miscalculation, misinterpretation and mishandling. This review discusses the ...

Multiple other ECG traits have also emerged as potential predictors of stroke, namely cardiac electrical/structural remodeling – Q wave, QRS/QT duration, bundle blocks, P wave duration/amplitude ...

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 ...

Also known as long QT syndrome, QT prolongation is a heart condition in which the time between two points on an electrocardiogram, called the QT interval, is longer than normal, which means there ...

About QT Medical: QT Medical is a pioneering medical technology company dedicated to advancing ECG solutions for healthcare, telemedicine and home-based care. By combining cutting-edge technology ...

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 ...