"STEMI and NSTEMI share the release of specific myocardial necrosis markers which define them clinically as acute MI (AMI) and set them apart from unstable angina, an acute coronary-syndrome which does not qualify as MI.
By definition, STEMI and NSTEMI are only different with respect to the reflection of acute myocardial ischaemia and necrosis in the ECG. Although this difference may be triggered by the size of the infarcted area, it may also be only the location of the infarct."
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