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[Coronary stents].

F W Amann1

  • 1Herz-Gefässzentrum Zürich, Klinik im Park, Zürich. franz.amann@hirslanden.ch

Therapeutische Umschau. Revue Therapeutique
|May 7, 2003
PubMed
Summary
This summary is machine-generated.

Coronary stents are widely used in percutaneous coronary interventions, offering improved outcomes over balloon angioplasty. New drug-eluting stents show promise in significantly reducing restenosis rates.

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Area of Science:

  • Cardiovascular medicine
  • Interventional cardiology
  • Biomedical engineering

Context:

  • Coronary stents have become a cornerstone of percutaneous coronary interventions (PCI), with over 80% of procedures now involving stent implantation.
  • Initial limitations to large vessels have been overcome, allowing stent use in complex lesions within smaller, diffusely diseased arteries.
  • Stent implantation offers superior acute and long-term results compared to balloon angioplasty alone, with reduced procedure times and improved lumen dimensions.

Purpose:

  • To review the evolution, clinical acceptance, and emerging technologies in coronary stent implantation.
  • To highlight the benefits of stenting, including improved patient outcomes and reduced need for reintervention.
  • To introduce the potential of drug-eluting stents (DES) in addressing the persistent challenge of restenosis.

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Summary:

  • Coronary stenting has evolved significantly, becoming a primary treatment for coronary artery disease due to favorable outcomes and technical advancements.
  • Dual antiplatelet therapy has mitigated the risk of stent thrombosis, a major concern with early stent designs.
  • While restenosis remains a concern (approx. 15% reintervention rate), drug-eluting stents demonstrate exceptionally low restenosis rates (0-9%) in initial trials.

Impact:

  • Drug-eluting stents represent a paradigm shift, potentially eliminating restenosis and dramatically altering the management of symptomatic coronary artery disease.
  • Widespread adoption of DES could lead to fewer repeat revascularization procedures and improved long-term patient prognosis.
  • Further long-term and real-world data are crucial to confirm the sustained efficacy and safety of drug-eluting stents in diverse patient populations and complex lesions.