Effects of Triple Antiplatelet Therapy (Aspirin, Clopidogrel, and Cilostazol) on Platelet Aggregation and P-Selectin Expression in Patients Undergoing Coronary Artery Stent Implantation

Bong Ki Lee, Seung Whan Lee, Seong Wook Park, Se Whan Lee, Duk Woo Park, Young Hak Kim, Cheol Whan Lee, Myeong Ki Hong, Jae Joong Kim, Seongsoo Jang, Hyun Sook Chi, Seung Jung Park

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43 Citations (Scopus)

Abstract

The purpose of this study was to determine the effect of the addition of cilostazol to aspirin plus clopidogrel on platelet aggregation after intracoronary stent implantation. Twenty patients who underwent coronary stent placement were randomly assigned to therapy with aspirin plus clopidogrel (dual-therapy group, n = 10) or aspirin plus clopidogrel plus cilostazol (triple-therapy group, n = 10). A loading dose of clopidogrel (300 mg) and cilostazol (200 mg) was administered immediately after stent placement, and clopidogrel (75 mg/day) and cilostazol (100 mg twice daily) were given for 1 month. Platelet aggregation in response to adenosine diphosphate (ADP; 5 and 20 μmol/L) or collagen and P-selectin (CD-62P) expression was assayed at baseline, 2 hours, 24 hours, 1 week, and 1 month after stent placement. Inhibition of ADP-induced platelet aggregation was significantly higher in patients receiving triple therapy than those receiving dual therapy from 24 hours after stent placement, and inhibition of collagen-induced platelet aggregation was significantly higher in the triple-therapy group beginning 1 week after stent placement. P-Selectin expression was significantly lower in the triple-therapy than dual-therapy group at 1 week and 30 days. In conclusion, compared with dual antiplatelet therapy, triple therapy after coronary stent placement resulted in more potent inhibition of platelet aggregation induced by ADP and collagen. These findings suggest that triple therapy may be used clinically to prevent thrombotic complications after coronary stent placement.

Original languageEnglish
Pages (from-to)610-614
Number of pages5
JournalAmerican Journal of Cardiology
Volume100
Issue number4
DOIs
Publication statusPublished - 2007 Aug 15

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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