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  • Title: Bivalirudin versus heparin plus glycoprotein IIb/IIIa inhibitors in drug-eluting stent implantations in the absence of acute myocardial infarction: clinical and economic results.
    Author: Mishkel GJ, Moore AL, Markwell SJ, Ligon RW.
    Journal: J Invasive Cardiol; 2007 Feb; 19(2):63-8. PubMed ID: 17268039.
    Abstract:
    BACKGROUND: The use of bivalirudin in percutaneous coronary interventions has been shown to be clinically safe and effective, and may be associated with shorter hospital stays and lower costs than heparin + glycoprotein (GP) IIb/IIIa inhibition. This study compared the utilization, clinical outcomes and costs associated with the planned use of bivalirudin versus heparin + GP IIb/IIIa inhibition in drug-eluting stent (DES) patients without acute myocardial infarction (MI). METHODS: We retrospectively studied 1,842 patients who underwent DES placement between May 2003 and December 2004. Planned treatment with heparin + GP IIb/IIIa inhibition was administered to 1,305 and planned bivalirudin alone was administered to 537 patients. Clinical follow ups (mean = 782 +/- 204 days) were obtained via telephone or mailed surveys in 1,813 patients (98.4%). Propensity analysis was utilized to adjust for between-groups baseline differences. RESULTS: The unadjusted data revealed similar in-hospital outcomes in both groups. After propensity adjustment, the rate of vascular complications was significantly lower in the bivalirudin-treated group (0.2% vs. 1.2%; p = 0.04). At 1 year, clinical outcomes were similar in both groups. The overall unadjusted and adjusted cost analysis revealed similar mean hospital costs (11,384 U.S. dollars vs. 11,018 U.S. dollars; p = ns) and length of stay (2.9 days vs. 2.8 days; p = ns) in both groups. The unadjusted and adjusted mean hospital costs were significantly lower in patients treated with bivalirudin versus patients who received heparin + abciximab. CONCLUSIONS: These observations suggest that bivalirudin is a safe, cost-effective alternative to heparin + GP IIb/IIIa inhibition in patients undergoing DES in the absence of acute MI.
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