Key result
Internal mammary artery grafts to the left anterior descending artery demonstrated a slightly higher overall late patency rate compared to saphenous vein grafts (91% vs 79%).
Why the study?
Does left internal mammary artery grafting improve late patency rates compared to saphenous vein grafting in patients with isolated left anterior descending stenosis or occlusion?
Does left internal mammary artery grafting improve late patency rates compared to saphenous vein grafting in patients with isolated left anterior descending stenosis or occlusion?
Internal mammary artery grafts demonstrate a higher late angiographic patency rate compared to saphenous vein grafts for isolated left anterior descending artery revascularization.
workers ' describe the results of aortocoronary bypass surgery after a mean follow-up of 5 l/2years in two con-secutive series of 100 patients with isolated left anterior descending stenosis or occlusion. One group received saphenous vein grafts and the other left inter-nal mammary artery grafts. Postoperative coronary angiography was carried out after a mean interval of 20 months in 102 patients, 56 with saphenous vein grafts and 46 with internal mammary artery grafts. Their study demonstrates that the overall late patency rate is slightly higher for internal mammary artery grafts to the left anterior descending artery than for saphenous vein grafts to the same vessel (91 % vs 79%, respectively). However, when the slight difference in follow-up between the two groups is eliminated by ac-
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Martial G. Bourassa (1980) conducted an editorial in Isolated left anterior descending artery stenosis or occlusion (n=200). Internal mammary artery grafts vs. Saphenous vein grafts was evaluated on Overall late patency rate. Internal mammary artery grafts to the left anterior descending artery demonstrated a slightly higher overall late patency rate compared to saphenous vein grafts (91% vs 79%).
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