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Revascularization of the right coronary artery: grafting or percutaneous coronary intervention?

Pierre-Emmanuel Falcoz1, Sidney Chocron, Christine Binquet

  • 1Department of Thoracic and Cardiovascular Surgery, Jean-Minjoz Hospital, Besançon, France. pierre-emmanuel.falcoz@wanadoo.fr

The Annals of Thoracic Surgery
|March 31, 2005
PubMed

Insights

For patients with multivessel disease, arterial grafting of the right coronary artery (RCA) offers better outcomes than percutaneous coronary intervention. The right internal thoracic artery is the most effective conduit for surgical revascularization.

Area of Science:

  • Cardiovascular Surgery
  • Interventional Cardiology
  • Decision Analysis in Medicine

Background:

  • The optimal myocardial revascularization strategy for the right coronary artery (RCA) in patients with multivessel disease and chronic stable angina is debated.
  • Comparison between hybrid strategies (left coronary bypass + RCA PCI) and exclusive surgical approaches is lacking.
  • Identifying the best conduit for surgical RCA revascularization is crucial.

Purpose of the Study:

  • To compare the effectiveness of hybrid revascularization versus exclusive surgical revascularization for the RCA.
  • To determine the optimal conduit for surgical revascularization of the RCA.
  • To evaluate the impact of graft patency on strategy selection.

Main Methods:

  • Decision analysis modeling was employed to compare surgical grafting and percutaneous coronary intervention (PCI) for RCA revascularization.
  • A comprehensive literature review identified key variables for each strategy.
  • Sensitivity analysis was performed to identify critical factors and threshold values.

Main Results:

  • Arterial grafting of the RCA demonstrated superior effectiveness compared to PCI (6% higher) and saphenous vein grafting (7% higher).
  • The right internal thoracic artery (RITA) was identified as the most effective arterial conduit.
  • Surgery is favored when the 1-year arterial graft patency rate exceeds 80%.

Conclusions:

  • Arterial grafting of the RCA provides better outcomes than percutaneous coronary intervention.
  • The right internal thoracic artery is the preferred conduit for surgical RCA revascularization.
  • Graft patency rates significantly influence the choice of revascularization strategy.
Abstract

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