What are the differential diagnosis of NSTE-ACS?
Differential diagnosis of NSTE-ACS includes nonischemic cardiovascular causes of chest pain (eg, aortic dissection, expanding aortic aneurysm, pericarditis, pulmonary embolism), noncardiovascular causes of chest, back, or upper abdominal discomfort (eg, pulmonary causes, gastrointestinal causes, musculoskeletal causes, psychiatric disorders, and other etiologies), acute coronary insufficiency due to a nonatherosclerotic cause, and noncoronary causes of myocardial oxygen supply.