Mid to Long-Term Results of Circumflex Coronary Artery Revascularization With Left Internal Thoracic Artery Grafts

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The current trend in coronary artery surgery is to revascularize the left coronary artery branches with bilateral internal thoracic arteries (ITA). For this procedure, the right ITA is usually grafted to the left anterior descending coronary artery while the circumflex coronary artery is revascularized by the left ITA. The mid to long-term results of the left ITA on the circumflex system were examined in this study. Forty of 48 patients operated on between 1996 and 1998 who had undergone revascularization of the left coronary artery with both ITAs and who fulfilled the study criteria underwent control coronary arteriography to determine the mid to long-term patency of LITA grafts on the circumflex artery. The median time for follow-up was 53 months (range, 49 to 70 months). Of the 40 angiographically controlled patients, 35 had patent left ITA to circumflex artery anastomosis (87.5%). One graft stenosis and four graft occlusions were observed. In the same group, right ITA to left anterior descending coronary artery anastomoses were patent in 38 patients (95%). Left ITA grafts seem to be the conduit of choice for revascularization of the circumflex coronary artery. In combination with the in situ right ITA to left anterior descending coronary artery anastomosis, in situ left ITA grafting to the circumflex system can be done with acceptably low mortality and excellent long-term patency rates. Its utilization is particularly advised in young patients where the importance of left coronary artery revascularization by bilateral ITA grafts is increased.
International Heart Journal刊行会の論文

Mid to Long-Term Results of Circumflex Coronary Artery Revascularization With Left Internal Thoracic Artery Grafts

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