Evaluation of Chest Pain and Acute Coronary Syndromes.

Chest pain is a common complaint in the emergency department, and it is the job of clinicians to rule out life-threatening diagnoses such as acute coronary syndrome. The history, physical examination, cardiac risk factors, electrocardiogram findings, and clinician judgment are often not enough to distinguish between causes of chest pain syndromes and to reliably rule out acute myocardial ischemia. New cardiac troponin assays, especially in conjunction with clinical decision algorithms, help clinicians rapidly exclude acute myocardial infarction. For further risk stratification, stress testing or coronary computed tomography angiography can be used in the emergency department.