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Published on: November 24, 2014
Current trends in selection of conduits for coronary artery bypass grafting
Thierry Carrel1, Bernhard Winkler2
1Department of Cardiovascular Surgery, Inselspital, University of Berne, Freiburgstrasse 18, 3010, Berne, Switzerland. thierry.carrel@insel.ch.
Insights
Coronary artery bypass grafting remains the gold standard for complex coronary artery disease. Optimal outcomes depend on selecting the best arterial grafts over traditional vein grafts for surgical revascularization.
Area of Science:
- Cardiovascular Surgery
- Vascular Grafting
- Interventional Cardiology
Background:
- Coronary artery bypass grafting (CABG) is the gold standard for multivessel coronary artery disease and left main stenosis.
- Graft selection is a critical determinant of long-term surgical revascularization outcomes.
- Saphenous vein grafts are currently the most frequently used conduits in cardiovascular procedures.
Purpose of the Study:
- To review current trends and evidence in coronary artery bypass graft selection.
- To compare the efficacy of arterial conduits versus saphenous vein grafts.
- To discuss controversial data regarding radial artery versus saphenous vein grafts.
Main Methods:
- Literature review of current trends and evidence in graft selection for coronary artery bypass grafting.
- Analysis of comparative data on arterial conduits (internal thoracic arteries, radial artery) and saphenous vein grafts.
- Overview of alternative conduit options.
Main Results:
- Full arterial revascularization using internal thoracic arteries and radial arteries offers significant benefits.
- Arterial grafts demonstrate superiority over multiple saphenous vein grafts.
- Widespread adoption of multiple arterial grafts lags behind evidence-based recommendations.
Conclusions:
- Optimal graft selection is paramount for achieving superior long-term outcomes in CABG.
- Arterial conduits, particularly the radial artery, present a compelling alternative to saphenous vein grafts.
- Further research and clinical practice shifts are needed to promote the use of arterial grafts.
Abstract:
The procedure of coronary artery bypass grafting continues to be the "gold standard" for patients with multivessel coronary artery disease and left main stenosis due to favourable long-term and consistent outcomes despite the advent of new generations of stents. But the targeted better long-term outcome of surgical revascularization over percutaneous interventions depends on several variables and aspects; one of them is the choice of conduits used to bypass the stenosed arteries. Coronary artery bypass surgery has been studied and debated for decades and the same applies to the selection of grafts. Current data provide significant benefits for patients who receive full arterial revascularization using both internal thoracic arteries and, if applicable, the radial artery. Unfortunately, the use of multiple arterial grafts is still not performed widely despite the evidence of superiority over multiple saphenous vein grafts that are still the most used grafts in cardiovascular procedures. In this review article, we present current trends and evidences for graft selection and give an overview of controversial data regarding the comparison of the radial artery and saphenous vein. Additionally, few words are spelt on alternative conduits.
