Upon review of this body and the described ECG findings, certain common patterns ... widened QRS complexes were most commonly attributed to RBBB or an unspecific intraventricular conduction ...

The ECG findings presented as normal in athletes were established ... early repolarisation, incomplete right bundle branch block (IRBBB) and voltage criteria for left ventricular hypertrophy (LVH).4 ...

The image below shows the typical findings of a left bundle branch block in the precordial ECG leads. Note: If the QRS duration is 100 to 119 ms with criteria 2, 3 and 4 of the above, an ...

We therefore sought to describe normative ECG characteristics and to examine the prevalence of abnormal ECG findings as defined by contemporary ... sinus arrhythmia (55%), and incomplete right bundle ...