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ЗАДАТЬ ВОПРОС РЕДАКТОРУ РАЗДЕЛА (ответ в течение нескольких дней)

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20 мая 2002 00:00   |   Hitoshi Hirose, MD, FICS*a, Atushi Amano, MDb, Shuichirou Takanashi, MD, Akihito Takahashi, MDa

Coronary artery bypass grafting using the gastroepiploic artery in 1,000 patients

Background. The gastroepiploic artery (GEA) has been used as a graft in 1,000 patients in our institution, and the clinical outcome and the angiographic long-term results were reviewed.
Methods. Between June 1, 1991, and June 30, 2001, 1,000 consecutive isolated coronary artery bypass grafting procedures using the GEA were performed in the Shin-Tokyo Hospital Group. The perioperative data were retrospectively analyzed, and the late angiographic results, cardiac related events, and survival were examined. The end points of the follow-up study were death or the occurrence of a cardiac-related event.
Results. The GEA was used in 767 men and 233 women (mean age, 63.8 ± 9.4 years). The GEA was used as an in situ graft in 99.6% of patients and was anastomosed to the right coronary artery in 87.8% and the circumflex artery in 10.0%. In addition, the left internal mammary artery was used in 96.9% of patients, the right internal mammary artery in 28.5%, the radial artery in 41.7%, the inferior epigastric artery in 1.4%, and the saphenous vein in 40.1%. The hospital morbidity and mortality rates were 10.8% and 0.8%, respectively. No abdominal complications were observed. Postoperative myocardial infarction associated with GEA graft failure occurred in 2 patients. During the late follow-up of 4.0 ± 2.3 years, cardiac-related events were observed in 155 patients. The actuarial 3- and 5−year event-free rates were 91.2% and 84.2%, respectively. There were 86 late deaths, 36 of which were cardiac related deaths. The actuarial 3- and 5−year survival rates were 96.6% and 92.6%, respectively. Angiography was performed on 437 patients within 1 year after operation and in 221 patients more than 1 year postoperatively (mean interval, 3.1 ± 1.8 years). The actuarial 1−, 3−, and 5−year GEA graft patency rates were 98.7%, 91.1%, and 84.4%, respectively, and the actuarial 1−, 3−, and 5−year LIMA graft patency rates were 99.6%, 98.8%, and 97.0%, respectively (p < 0.0005).
Conclusions. The GEA was used for coronary artery bypass grafting with good perioperative results. However, the angiographic patency rate of the GEA was inferior to that of the internal mammary arteries. The late occurrence of angina attributed to GEA graft failure should be carefully monitored


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