Afternoon London Girl
Do not know if this is any help but here goes..
A couple of years back I got my Class I for an ultimately unsuccessful Bristows application (boo hoo)....
Anywho, my ECG showed an anomaly which upon investigation (in the form of a chest X-ray) the cause of the anomalous trace (I think) was termed a Right Axial Displacement of my heart. Probably caused by a severe chest trauma (or writing off my car as I prefer to refer to it), an entirely benign condition (if that is the correct word).
The point of this rambling is that an ECG may well show anomalies and I guess any variation from the 'standard' expected for a particular demographic will require investigation.
The CAA doc signed off against the Class I and I am yet to drop down dead due to my heart being in the wrong position.
p.s. can you tell I enjoy using the word anomaly?