4.2 Myocardial Infarction

A myocardial infarction (MI), known in lay terms as a heart attack, is a medical emergency that results from the sudden loss of blood flow to part of the heart muscle. In this section, we’ll explore how this differs from angina, how to recognise it in a clinical setting, and what immediate investigations and treatments are required. We'll also cover longer-term management aimed at preventing future cardiac events.