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A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
04:30

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

Published on: May 14, 2013

A collaborative systematic review and meta-analysis on 1278 patients undergoing percutaneous drug-eluting stenting

Giuseppe G L Biondi-Zoccai1, Marzia Lotrionte, Claudio Moretti

  • 1Interventional Cardiology, Division of Cardiology, University of Turin, Turin, Italy. gbiondizoccai@gmail.com

American Heart Journal
|January 25, 2008
PubMed

Insights

Drug-eluting stents (DES) show promising results for unprotected left main disease (ULM), reducing major adverse cardiovascular events compared to bare-metal stents and CABG. However, further randomized trials are needed to confirm DES efficacy and safety in ULM treatment.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Vascular Surgery

Background:

  • Unprotected left main disease (ULM) is typically treated with cardiac surgery.
  • Drug-eluting stent (DES) implantation is an emerging alternative, but its outcomes require further investigation.
  • This study systematically reviews the available evidence on DES implantation for ULM.

Purpose of the Study:

  • To systematically review and meta-analyze the outcomes of percutaneous DES implantation in patients with ULM.
  • To compare DES implantation with other treatment modalities, including bare-metal stents and coronary artery bypass grafting (CABG).

Main Methods:

  • A systematic literature search was conducted across multiple databases.
  • Included studies had at least 20 patients and a follow-up of 6 months or more.
  • Meta-analysis and meta-regression were used to pool data and assess risk estimates for major adverse cardiovascular events (MACE).

Main Results:

  • Sixteen studies involving 1278 patients were included, with a median follow-up of 10 months.
  • DES implantation showed rates of 16.5% MACE, 5.5% death, and 6.5% target vessel revascularization (TVR).
  • DES was associated with significantly lower MACE compared to bare-metal stents (OR 0.34) and CABG (OR 0.46, including stroke).

Conclusions:

  • Current clinical studies suggest favorable early and midterm outcomes for DES in selected ULM patients.
  • Limitations in study validity and the risk of DES thrombosis necessitate caution.
  • Randomized controlled trials are essential to definitively establish the role of DES versus surgery for ULM treatment.
Abstract

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