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Stenting small coronary arteries.

M C Morice1, R Bradai, T Lefèvre

  • 1Institut Cardiovasculaire Paris Sud, 6 avenue du Noyer Lambert, 91300 Massy, France. morice-mc@lmn-tech.com

The Journal of Invasive Cardiology
|April 4, 2000
PubMed
Summary
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Coronary artery stenting in small vessels is now feasible, showing a low subacute occlusion rate of 2.6% in a 190-patient registry. This study supports stenting for acute closure, with potential for improved outcomes with new stent technologies.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Vascular Medicine

Background:

  • Historically, stenting small coronary arteries (<3.0 mm) was contraindicated due to high rates of subacute occlusion.
  • Small vessel coronary artery disease presents unique challenges for stent implantation and long-term patency.

Purpose of the Study:

  • To evaluate the safety and efficacy of stenting small coronary arteries using 2.5 mm balloons.
  • To assess procedural success, subacute occlusion rates, and clinical outcomes in patients undergoing stenting of small coronary arteries.

Main Methods:

  • A single-center registry of 190 patients who underwent stenting of small coronary arteries with 2.5 mm balloons was analyzed.
  • Procedural success, incidence of subacute occlusion, and rates of repeat intervention were recorded.

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Main Results:

  • Procedural success was achieved in 98% of patients.
  • The rate of subacute occlusion was low at 2.6%.
  • Clinical follow-up revealed a 24.5% rate of repeat intervention.

Conclusions:

  • Stent implantation in small coronary arteries is a viable option, particularly for acute or threatened closure, with acceptable outcomes.
  • Emerging stent designs and coatings hold promise for further reducing subacute occlusion and restenosis rates in small vessels.