An Osborne wave can also occur from hypercalcemia. Hypercalcemia shortens the QT interval. Dextrocardia shows negative QRS complex in lead I with negative P and T wave in this lead. There is low ...

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 ...

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 ...

but reflects early repolarisation with J point elevation and a high take-off with downsloping ST segment followed by a negative T wave (figure 10). The most commonly used voltage criterion for LVH is ...

The regular arrhythmia occurring at the beginning of the electrocardiogram was identified as ventricular bigeminy. Single ventricular premature complexes (VPCs), as well as pairs and triplets of ...

Background The 12-lead ECG is not only necessary for diagnosing the sports aptitude of players, but it also provides information on their training condition and cardiovascular adaptations to exercise.

Normally, there is no electrical activity (flat ECG) between ventricular depolarization (reflected by the QRS complex) and repolarization (T wave), corresponding to the ST segment, because all ...