Indications for Coronary Artery Bypass Grafting (CABG) depend on various factors, mainly on the individual's symptoms and severity of disease. Some of these include -
- Left main artery disease or equivalent
- Triple vessel disease
- Abnormal Left Ventricular function.
- Failed PTCA.
- Immediately after Myocardial Infarction (to help perfusion of the viable myocardium).
- Life threatening arrhythmias caused by a previous myocardial infarction.
- Occlusion of grafts from previous CABGs.
Bypass grafting may be contraindicated in patients, for e.g. absent viable myocardium or the artery that needs grafting is too small.
An Argentinean cardiac surgeon called Rene Favaloro in 1960's first pioneered CABG and today over 500,000 CABGs are done every year in United States alone. In India where there is a rising incidence of heart disease the number of CABG surgeries is showing an increasing trend.
Rene G. Favaloro moved to the Cleveland Clinic in 1962 and with him came a wind of change that was to reshape cardiac surgery forever. With his cherished colleagues, Effler, Sones, Proudfit, Groves, Sheldon, and countless others, he contributed to the double internal mammary artery-myocardial implantation by the Vineberg method, and, subsequently, in May 1967, he reconstructed the right coronary artery by saphenous vein graft interposition. These milestones set the stage for aortocoronary saphenous vein bypass grafting in October 1967.
- Captur G - Memento for René Favaloro, Tex Heart Inst J. 2004;31(1):47-60