In 2000, the European Society of Cardiology and the American College of Cardiology jointly published [1] guidelines defining myocardial infarction. The definition was based partly on the availability of new biomarkers to assist in detecting myocardial damage. As part of their report, the criteria for acute ST elevation myocardial infarction were established. These provided thresholds for abnormal ST elevation in the 12-lead ECG. Table 1 summarises these criteria.