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A meta-analysis of 3,773 patients treated with percutaneous coronary intervention or surgery for unprotected left

Hursh Naik1, Anthony J White, Tarun Chakravarty

  • 1Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, California 90048, USA.

JACC. Cardiovascular Interventions
|August 22, 2009
PubMed

Insights

Percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) show similar outcomes for unprotected left main coronary artery (ULMCA) stenosis regarding mortality and major adverse events. However, PCI increases the need for target vessel revascularization.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Clinical Outcomes Research

Background:

  • Current guidelines recommend coronary artery bypass grafting (CABG) over percutaneous coronary intervention (PCI) for unprotected left main coronary artery (ULMCA) stenosis.
  • PCI is not recommended by major cardiology guidelines for ULMCA stenosis (Class III recommendation).

Purpose of the Study:

  • To evaluate the comparative effectiveness of PCI versus CABG for treating ULMCA stenosis.
  • To synthesize existing evidence on clinical outcomes, including mortality and major adverse cardiovascular or cerebrovascular events (MACCE).

Main Methods:

  • A meta-analysis of ten clinical studies involving 3,773 patients treated with PCI or CABG for ULMCA stenosis.
  • Outcomes including death, myocardial infarction, stroke, and target vessel revascularization were compared up to 3 years post-procedure.

Main Results:

  • No significant difference in MACCE or mortality was observed between PCI and CABG groups at 1, 2, and 3 years.
  • PCI was associated with a significantly higher rate of target vessel revascularization compared to CABG at all time points.
  • Mortality rates were comparable between the two treatment groups up to 3 years.

Conclusions:

  • PCI is a viable alternative to CABG for selected patients with ULMCA stenosis, demonstrating similar safety and efficacy in terms of mortality and MACCE.
  • The increased need for target vessel revascularization with PCI necessitates careful patient selection and consideration of long-term management strategies.
Abstract

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