Table 2.

Definition of acute myocardial infarction as per the fourth universal definition of myocardial infarction (European Society of Cardiology, 2018)5

Acute myocardial infarction:
Detection of an increase and/or decrease of a cardiac biomarker with at least one value above the 99th percentile of the upper reference limit and at least one of:
  • symptoms of myocardial ischaemia

  • new ischaemic ECG changes or development of pathological Q waves

  • imaging evidence of a loss of viable myocardium or new regional wall motion abnormality in pattern consistent with ischaemic aetiology

  • intracoronary thrombus detected on angiography or autopsy.

Non-ST-segment elevation myocardial infarction:
The criteria for AMI met without persistent ST-segment elevation (>20 minutes) or new left bundle branch block