Greenslade JH, et al. – This prospective study intended to identify differences in prevalence, demographics, clinical features and outcomes for type 1 myocardial infarction (T1MI) and type 2 myocardial infarction (T2MI) in a cohort of patients presenting to the Emergency Department (ED) with chest pain. In the ED, T2MIs comprised one–quarter of all MIs diagnosed. Symptoms did not allow clinicians to reliably differentiate patients with T1MI and T2MI among patients presenting to the ED with symptoms of ACS. In T2MI, prior hypertension, tachycardia, and abnormal non–ischaemic ECGs were seen more often compared with T1MI. In patients with T1MI and T2MI, one–year mortality was substantial, but low power precluded conclusions about mortality differences between groups.