Eric J. Topol –

For decades one of my favourite tasks in medicine has been reading 12-lead electrocardiograms (ECGs). I’ve always thought the wealth of information provided was impressive—eg, conduction and heart rhythm abnormalities, lack of blood supply or damage to the heart, chamber enlargement or hypertrophy, and inflammation of the pericardium. In the 1980s, when I did emergency coronary angiograms for patients with acute myocardial infarction, I marvelled at how the ECG accurately predicted the infarct-related artery and whether the occlusion was proximal or distal. But today I realise that whatever I could discern from a close review of an ECG was only rudimentary—it was just human.

Read the full article on the Lancet.