Understanding the ECG. Part 8: myocardial ischaemia and infarction (part A)

This document is the Accepted Manuscript version of a Published Work that appeared in final form in British Journal of Cardiac Nursing, copyright © MA Healthcare, after peer review and technical editing by the publisher. To access the final edited and published work see 10.12968/bjca.2016.11.6.290 In this eighth instalment of our ECG series, we examine the ECG changes that occur during myocardial ischaemia and infarction, and place them in the context of underlying pathophysiology and clinical management. Because of the size of the subject, we will address it in two parts. In this first part we examine the coronary circulation, the pathophysiology of CHD, and the diagnosis and treatment of ST elevation MI (STEMI). In the second part, to be published next month, we will complete our discussion of STEMI, before moving on to non-ST elevation MI (NSTEMI) and unstable angina.