Outcomes in Patients Undergoing Primary Percutaneous Coronary Intervention for ST-Segment Elevation Myocardial Infarction Via Radial Access Anticoagulated With Bivalirudin Versus Heparin: A Report From the National Cardiovascular Data Registry.

Jovin IS, Shah RM, Patel DB, Rao SV, Baklanov DV, Moussa I, Kennedy KF, Secemsky EA, Yeh RW, Kontos MC, Vetrovec GW. Outcomes in Patients Undergoing Primary Percutaneous Coronary Intervention for ST-Segment Elevation Myocardial Infarction Via Radial Access Anticoagulated With Bivalirudin Versus Heparin: A Report From the National Cardiovascular Data Registry. JACC. Cardiovascular interventions. 2017 Jun 12; 10(11):1102-1111.

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Abstract:

OBJECTIVES: The aim of this study was to compare bivalirudin with heparin as anticoagulant agents in patients with ST-segment elevation myocardial infarction treated with radial primary percutaneous coronary intervention (PCI). BACKGROUND: Recent studies in which PCI was performed predominantly via radial access did not show bivalirudin to be superior to heparin. METHODS: Outcomes were compared in patients with STEMI included in the National Cardiovascular Data Registry CathPCI database from 2009 to 2015 who underwent primary PCI via radial access and who were anticoagulated with bivalirudin or heparin. RESULTS: The sample included 67,368 patients, of whom 29,660 received bivalirudin and 37,708 received heparin. The 2 groups of patients did not differ significantly in their mean age or percentage of men. The unadjusted comparison showed no significant difference in the rate of the composite endpoint of death, myocardial infarction, or stroke (4.6% vs. 4.7%; p  = 0.47) and a significantly higher rate of acute stent thrombosis (1.00% vs. 0.60%; p  < 0.001) with bivalirudin compared with heparin. After adjusting for multiple variables, including a propensity score reflecting the probability of receiving bivalirudin, the odds ratio of the composite endpoint of death, myocardial infarction, or stroke for bivalirudin versus heparin was 0.95 (95% confidence interval: 0.87 to 1.05; p  = 0.152), and the odds ratio for acute stent thrombosis was 2.11 (95% confidence interval: 1.73 to 2.57) for bivalirudin versus heparin. Major bleeding rates were not significantly different. CONCLUSIONS: In patients undergoing primary PCI via transradial access anticoagulated with bivalirudin or heparin, there was no difference in the composite endpoint of death, myocardial infarction, or stroke.