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PharmD Student, St. Louis College of Pharmacy, St. Louis, MO
Assistant Professor, Division of Pharmacy Practice, St. Louis College of Pharmacy
Reprints: Brenda L Gleason PharmD, Division of Pharmacy Practice, St. Louis College of Pharmacy, 4588 Parkview Pl., St. Louis, MO 63110-1088, FAX 314/454-3375, bgleason{at}stlcop.edu
OBJECTIVE: To review data concerning combined aspirin/warfarin versus aspirin alone for secondary prevention after myocardial infarction (MI).
DATA SOURCES: Literature was accessed through MEDLINE (1966September 2002). Search terms included aspirin, warfarin, secondary prevention, and myocardial infarction.
DATA SYNTHESIS: Despite use of low-dose aspirin after an MI, risk of subsequent death and ischemic events remains high, making strategies for secondary prevention imperative. Relevant, large, long-term studies focusing on dual aspirin/warfarin versus aspirin alone in post-MI patients were evaluated.
CONCLUSIONS: Aspirin 75325 mg/d should remain first-line therapy for secondary prevention after MI. Combining aspirin 7581 mg with warfarin to maintain the international normalized ratio at 2.02.5 may provide added benefit, but should be considered only for patients at high risk for thromboembolic events.
Key Words: aspirin, combination therapy, myocardial infarction, secondary prevention, warfarin
Published Online, August 15, 2003. www.theannals.com, DOI 10.1345/aph.1C474
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