Acute coronary syndromes whose clinical spectrum consists of unstable angina pectoris, non-ST-elevation myocardial infarction and ST-elevation myocardial infarction carry the greatest risk of death and severe complications to patients with coronary artery disease. Patients with acute coronary syndromes may be submitted to conservative or invasive management, with differences in the timing of invasive management in patients selected for that strategy. Early diagnosis, good monitoring and appropriate global assessment of every patient improve the selection of patients for adequate modality of treatment that will prevent death, complications and other serious events.
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