The influence of coronary collaterals on graft flow and early graft occlusion in aortocoronary bypass surgery
Fujiwara, T.; Katsumura, T.; Dokou, S.; Inada, H.; Kiso, A.; Nogami, A.; Masaki, H.; Nakai, M.; Yamane, H.; Yamamoto, T.
Nihon Kyobu Geka Gakkai 34(7): 972-976
1986
ISSN/ISBN: 0369-4739 PMID: 3490523 Document Number: 284252
The influence of coronary collateral circulation on bypass graft flow and early graft occlusion was studied in the patients having aortocoronary bypass surgery. The results are as follows: 1. Mean flow volume in aorta-left anterior descending artery bypass graft was 85.5 .+-. 38.9 ml in the cases within collaterals, 123.8 .+-. 45.4 ml with donor collaterals from left anterior descending artery to others and 63.3 .+-. 25.7 ml with recipient collaterals from others to left anterior descending artery. 2. Mean flow in aorta-right coronary artery bypass graft was 88.2 .+-. 30.5 ml in the cases without collaterals, 90.0 .+-. 21.4 ml with donor collaterals from right coronary to others and 40.6 .+-. 23.4 ml with recipient collaterals from other coronary to right coronary artery. 3. There was no early occlusion in the bypass grafts to donor coronary arteries, however, the rate of early graft occlusion was 23.1% in bypass to recipient coronary arteries. Thus low graft flow and high incidence of graft occlusion were seen in bypass to the coronary arteries having recipient collaterals.