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Repeat intervention after invasive treatment of coronary arteries

Pertti Loponen1, Kari Korpilahti, Michael Luther

  • 1Department of Thoracic and Vascular Surgery, Vaasa Central Hospital, Vaasa, Finland.

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
|October 18, 2008
PubMed

Insights

Percutaneous coronary intervention (PCI) is less invasive than coronary artery bypass grafting (CABG) but often requires repeat procedures. Patients with multi-vessel coronary artery disease (CAD) should consider long-term revascularization needs when choosing between PCI and CABG.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Health Outcomes Research

Background:

  • Coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) are common revascularization strategies for coronary artery disease (CAD).
  • Patients undergoing initial successful revascularization may require subsequent invasive procedures.
  • Long-term outcomes and repeat intervention rates differ between CABG and PCI, impacting patient management.

Purpose of the Study:

  • To compare the rates of repeat invasive procedures and revascularization following initial PCI versus CABG in patients with multi-vessel CAD.
  • To evaluate the factors contributing to repeat interventions in both treatment groups.
  • To inform clinical decision-making for revascularization strategies in CAD.

Main Methods:

  • Retrospective review of 662 coronary artery diseased (CAD) patients.
  • 36-month follow-up period to assess outcomes.
  • Comparison of repeat angiography, repeat PCI, and repeat CABG rates between initial PCI and CABG groups.

Main Results:

  • Thirty-day mortality was 1.0% for CABG and 0% for PCI (p=0.094).
  • Repeat angiography was significantly higher in the PCI group (57.7%) vs CABG group (4.3%) (p<0.001).
  • Repeat PCI (20.7% vs 3.2%, p<0.001) and repeat CABG (6.9% vs 0.7%, p<0.001) were more frequent after initial PCI. Cox regression showed hazard ratios for repeat PCI and repeat CABG were 8.5 (CI 3.7-19.5) and 9.5 (CI 2.2-40.0) respectively, compared to initial CABG.

Conclusions:

  • While PCI offers lower in-hospital mortality, it is associated with a significantly higher likelihood of repeat invasive procedures.
  • Factors for repeat intervention after PCI include in-stent restenosis and plaque progression.
  • Factors for repeat intervention after CABG include graft complications and disease progression.
  • The need for future revascularization should be a key consideration in choosing between PCI and CABG for multi-vessel CAD.
Abstract

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