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The Annals of Thoracic Surgery, Vol 53, 156-159, Copyright © 1992 by The Society of Thoracic Surgeons

ARTICLES

Angiographic demonstration of no-flow anatomical patency of internal thoracic-coronary artery bypass grafts

S Kitamura, K Kawachi, T Seki, N Sawabata, R Morita and T Kawata
Department of Surgery III, Nara Medical College, Japan.

To clarify the no-flow situation of the stringlike internal thoracic artery graft, we angiographically examined such grafts by temporarily occluding the recipient coronary artery with a percutaneous transluminal coronary angioplasty balloon and were able to reveal anatomical patency of the internal thoracic artery graft in 2 patients 1 year and 3 years after the operations. Thus, there is a possibility that internal thoracic artery grafts may continuously maintain anatomical patency even under no-flow situations just like nonfunctioning collateral vessels and may function properly later as a graft when the native coronary flow decreases. Also, this angiographic technique can be a new method for detecting anatomical patency of no- flow and functionally closed internal thoracic artery grafts.

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