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Unstable Angina and Non-ST Elevation Myocardial Infarction

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Comprehensive Cardiovascular Medicine in the Primary Care Setting

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Abstract

Unstable angina (UA) and non-ST elevation myocardial infarction (NSTEMI) represent part of the acute coronary syndrome (ACS) spectrum that also includes ST elevation myocardial infarction (STEMI). Combined, UA and NSTEMI are known as non-ST elevation acute coronary syndrome (NSTE-ACS). Recent estimates suggest that 1.14 million hospitalizations occurred for ACS events in 2010 in the United States, with 813,000 for myocardial infarction. Of those patients with elevated cardiac biomarkers suggestive of MI, at least one-half may be classified as NSTEMI, and its percentage appears to be rising. Among the NSTE-ACS, the development of more sensitive cardiac biomarker assays, in particular cardiac-specific troponin, has led to increased detection of NSTEMIs.

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Robbins, J., Gelfand, E.V. (2019). Unstable Angina and Non-ST Elevation Myocardial Infarction. In: Toth, P., Cannon, C. (eds) Comprehensive Cardiovascular Medicine in the Primary Care Setting. Contemporary Cardiology. Humana Press, Cham. https://doi.org/10.1007/978-3-319-97622-8_11

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