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ISCHAEMIC HEART DISEASE

Conventional harvesting of the saphenous vein during coronary artery bypass grafting surgery (CABG) causes damage to the vessel which has previously been shown to affect endothelial cell integrity and may therefore have an effect on the patency rate. To counteract this, a novel "no touch" technique has been engineered which involves harvesting the saphenous vein with its surrounding tissue. Souza et al assigned 52 patients to conventional CABG, while another 52 had their saphenous veins harvested using the "no touch" technique. Angiographic follow-up was performed at a mean time of 18 months after the operation in at least 45 patients from each group, and again at a mean time of 8.5 years in 37 patients from both groups. The recipient coronary arteries were similar in their size and quality in both groups. At 18 months 89% of conventional versus 95% of no-touch grafts were patent; at 8.5 years this difference
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