Comparison of drug-eluting and bare-metal stents for stable coronary artery disease

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A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis

Published on: May 14, 2013

Brian Horst1, Charanjit S Rihal, David R Holmes

  • 1Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota 55905, USA.

JACC. Cardiovascular Interventions
|May 26, 2009
PubMed

Insights

Drug-eluting stents (DES) show superiority over bare-metal stents (BMS) for stable angina patients within one year. However, this benefit diminishes with longer follow-up, necessitating further research for sustained efficacy and safety.

Area of Science:

  • Cardiology
  • Interventional Cardiology

Background:

  • Percutaneous coronary intervention (PCI) alleviates angina symptoms.
  • PCI's impact on reducing myocardial infarction or mortality in stable angina remains unproven.

Purpose of the Study:

  • To compare the efficacy of drug-eluting stents (DES) versus bare-metal stents (BMS) in patients with stable angina.
  • To evaluate the long-term outcomes of DES compared to BMS.

Main Methods:

  • Retrospective analysis of prospective data from patients meeting COURAGE study criteria.
  • Comparison of BMS versus DES implantation.
  • Primary outcome: composite of death, myocardial infarction, stroke, and revascularization.

Main Results:

  • One-year primary event rate was significantly lower with DES (15%) versus BMS (27%, p < 0.001).
  • Adjusted 1-year hazard ratio favored DES (0.51, p < 0.001).
  • Longer follow-up revealed increased event rates in DES patients, leading to nonsignificant comparisons.

Conclusions:

  • DES demonstrate superior outcomes to BMS in stable coronary disease patients at one year.
  • The incremental benefit of DES decreases over extended follow-up periods.
  • Further research is required to optimize long-term DES efficacy and safety.
Abstract

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