Effects of Upstream Administration of Tirofiban Before Percutaneous Coronary Intervention on Spontaneous Reperfusion and Clinical Outcomes in Acute ST-Segment Elevation Myocardial Infarction
Restricted accessResearch articleFirst published online January, 2015
Effects of Upstream Administration of Tirofiban Before Percutaneous Coronary Intervention on Spontaneous Reperfusion and Clinical Outcomes in Acute ST-Segment Elevation Myocardial Infarction
We assessed the effects of upstream administration of the glycoprotein IIb/IIIa inhibitor tirofiban before percutaneous coronary intervention (PCI) on spontaneous reperfusion (SR) of infarct-related artery (IRA) and the clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI). The incidence of SR of the IRA was significantly higher in the tirofiban group than in the no-tirofiban group (141 [36.5%] vs 21 [17.2%], P < .001). By multivariate logistic regression analysis, use of tirofiban (odds ratio 2.32, 95% confidence interval 1.25-4.31, P = .008) independently predicted the occurrence of SR. Kaplan-Meier survival analysis demonstrated that major adverse cardiovascular event-free survival was significantly higher in patients treated with tirofiban than in patients without tirofiban at 30-day (log rank = 11.65, P = .001) and 90-day follow-up (log rank = 16.79, P < .001). Upstream administration of tirofiban is significantly associated with increased SR of the IRA and favorable clinical prognosis in patients undergoing PCI for STEMI.
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