Research Article

Diagnostic Implications of an Elevated Troponin in the Emergency Department

Table 1

Types of myocardial infarction (MI).


IInfarction due to ischemia from a primary coronary event such as atherosclerotic plaque rupture and thrombus formation, arterial wall erosion, fissuring, or dissection

IIInfarction secondary to ischemia from either increased oxygen demand or decreased supply (coronary artery spasm, hypotension, hypertension, anemia, and dysrhythmia)

IIISudden cardiac death/arrest with symptoms suggestive of STEMI or thrombus in a coronary artery found on angiography or autopsy

IVaInfarction resulting from percutaneous coronary intervention (PCI)

IVbInfarction from stent thrombosis

VInfarction due to ischemia related to coronary artery bypass grafting