clinical classification of different types of myocardial infarction
Last reviewed 02/2021
Type 1: spontaneous myocardial infarction related to ischaemia due to a primary coronary event such as plaque erosion and/or rupture fissuring, or dissection
Type 2: myocardial infarction secondary to ischaemia due to either decreased supply or increased demand e.g. coronary artery spasm, coronary embolism, anaemia, arrhythmias, hypertension or hypotension
Type 3: sudden unexpected cardiac death, including cardiac arrest, often with symptoms suggestive of ischaemia, accompanied by presumably new ST elevation, or new LBBB, or evidence of fresh thrombus in a coronary artery by angiography and/or at autopsy, but death occuring before blood samples could be obtained, or at a time before the appearance of cardiac markers in the blood
Type 4a: myocardial infarction associated with PCI
Type 4b: myocardial infarction associated with stent thrombosis either at angiography or at autopsy
Type 5: myocardial infarction associated with CABG
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