ADVANTAGES AND DISADVANTAGES OF CORONARY REVASCULARIZATION BY CORONARY-ARTERY BYPASS GRAFTS

Coronary vein grafts are frequently become occluded or develop atheros clerotic lesions in the long-term. In contrast, the internal mammary a rtery has a Very satisfactory long-term patency rate, The use of an in ternal mammary artery on the LAD consequently increases the benefit of coronary surgery. The benefit of using 2 internal mammary arteries or other arterial grafts for coronary artery bypass surgery is more cont roversial. The advantages and disadvantages of the various coronary ar tery grafts are reported together with the clinical experience of seve ral teams in this area. Coronary artery surgery should be reserved to patients with a good general condition, who are likely to benefit from this type of revascularization. The right internal mammary artery is unsuitable for revascularization of the right coronary network and the two internal mammary arteries must be used to revascularize the left coronary network, in order to obtain a good result. However, surgeons must be aware of the limitations of coronary artery surgery and these techniques should be used cautiously.