Types of myocardial infarction (MI).
|I||Infarction due to ischemia from a primary coronary event such as atherosclerotic plaque rupture and thrombus formation, arterial wall erosion, fissuring, or dissection|
|II||Infarction secondary to ischemia from either increased oxygen demand or decreased supply (coronary artery spasm, hypotension, hypertension, anemia, and dysrhythmia)|
|III||Sudden cardiac death/arrest with symptoms suggestive of STEMI or thrombus in a coronary artery found on angiography or autopsy|
|IVa||Infarction resulting from percutaneous coronary intervention (PCI)|
|IVb||Infarction from stent thrombosis|
|V||Infarction due to ischemia related to coronary artery bypass grafting|