Key result
Angiographic evaluation of 46 patent aorto-coronary saphenous vein bypasses demonstrated bidirectional coronary flow in 37 (80.4%) and unidirectional flow in 9 (19.6%).
Why the study?
What is the pattern of coronary artery blood flow following aorto-coronary saphenous vein bypass?
Observational (n=46)
What is the pattern of coronary artery blood flow following aorto-coronary saphenous vein bypass?
Aorto-coronary saphenous vein bypasses frequently produce bidirectional coronary flow, which is necessary to perfuse branches arising between the obstruction and the anastomosis.
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Retrograde branch perfusion via patent SVGs warrants angiographic attention; leaves open refined post-CABG imaging protocols.
Levin et al. (1971) conducted an observational in Aorto-coronary saphenous vein bypass (n=46). Aorto-coronary saphenous vein bypass was evaluated on Bidirectional coronary flow. Angiographic evaluation of 46 patent aorto-coronary saphenous vein bypasses demonstrated bidirectional coronary flow in 37 (80.4%) and unidirectional flow in 9 (19.6%).
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