Angiographic and Clinical Outcome in ST-Segment Elevation Myocardial Infarction Patients Receiving an Adjunctive Double Bolus Regimen of Tirofiban for Primary Percutaneous Coronary Intervention(CLINICAL INVESTIGATION)

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Background Because of different dosages, the efficacy of adjunctive tirofiban therapy for primary percutaneous coronary intervention (PCI) is currently unclear. The hypothesis that a double bolus regimen of tirofiban will improve angiographic and clinical outcomes in patients with ST-segment elevation acute myocardial infarction (STEMI) undergoing PCI was tested in the present study. Methods and Results Primary PCI was performed in 217 STEMI patients: 80 received standard PCI (control group) and 137 received tirofiban (tirofiban group). Tirofiban was given as a bolus (10mg/kg) in the emergency room and again upon arrival at the cardiac catheterization laboratory, followed by infusion of 0.15mg・kg^<-1>・min^<-1> until the total dose reached 12.5mg. The primary endpoint was emergency target vessel revascularization, recurrent myocardial infarction, or cardiovascular mortality at 30 days and 1 year. Baseline clinical and angiographic variables of the 2 groups were similar, as were angiographic results after PCI and bleeding complications at 30 days. The primary 30-day and 1-year endpoints were 5.1% and 11.7% in the tirofiban group, respectively, vs 10.0% (p=0.171) and 18.8% (p=0.151) in the control group. Conclusion Although angiographic and clinical benefits were not demonstrated, the results suggest that research into an effective and uniform dosing regimen of adjunctive tirofiban therapy for PCI is warranted.
社団法人日本循環器学会の論文
2006-04-20

Angiographic and Clinical Outcome in ST-Segment Elevation Myocardial Infarction Patients Receiving an Adjunctive Double Bolus Regimen of Tirofiban for Primary Percutaneous Coronary Intervention(CLINICAL INVESTIGATION)

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