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).

At an electrophysiology meeting one would expect a lot of interest in the high-tech and cutting edge. Yet one constant I find at European meetings is the popularity of sports cardiology, a decidedly ...