ECG QRS voltage, therefore, can be influenced by a variety of factors ... The standards for QRS voltage have been derived from studies of populations of clinically normal children. Furthermore, the ...

The QRS complex duration (0.08 sec) and morphology are normal. The QT/QTc intervals are normal (240/350 msec). The axis is rightward between +90° and +180° (negative QRS complex in lead I and ...

In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).

With use of the ECG criteria tool, all physician groups significantly ... early repolarisation and isolated increases in QRS voltage which are considered normal based on modern criteria. The ECGs ...

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 ...