Antiplatelet therapy with aspirin, an irreversible inhibitorof platelet cyclooxygenase, has earned its rightful place asa cornerstone of treatment for reducing cardiovascular eventsin patients with established vascular disease.1,2 This statementis based on consistent results favoring aspirin in a large numberof randomized, controlled trials in populations with eitheracute or long-term disease. Clopidogrel, by inhibiting the adenosinediphosphate P2Y12 receptor, offers a distinctly different mechanismto reduce platelet activation and aggregation. As monotherapy,clopidogrel has been shown to be effective in reducing the riskof vascular events in patients with established vascular disease.3
From Brigham and Women's Hospital and Harvard Medical School (M.A.P.) and the Journal (J.A.J.) all in Boston.
This article was published at www.nejm.org on March 12, 2006.
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