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Adjunctive Devices for Patients With Acute Coronary Syndromes Undergoing Percutaneous Coronary Intervention

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Background: Coronary Heart Disease

Coronary heart disease (CHD) is a leading cause of morbidity and mortality in the United States. According to American Heart Association statistics, >650,000 deaths were attributed to CHD in 2003. Moreover, treatment costs for CHD represent the largest health care expenditure for a single disease in the United States. Acute coronary syndromes (ACSs), which include the clinical entities of unstable angina (UA), non–ST-segment elevation MI (NSTEMI), and ST-segment elevation MI (STEMI), account for more than 1.5 million hospital admissions annually in the United States alone. Approximately 1 million of these admissions are classified as UA/NSTEMI, and approximately 500,000 are STEMI.