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Akio Wakabayashi, MD; John E. Connolly, MD; Roy T. Adachi, MD; R. Michael Black, MD; Edward A. Stemmer, MD; Jack I. Eisenman, MD

AMA Arch Surg. 1971;103(1):36-40.

Abstract
In 25 dogs ascending aorta-coronary bypass techniques were compared by use of femoral arteries in seven, internal mammary arteries in six, and reversed saphenous veins in twelve. In those animals available for long-term studies the veins were open in eight out of nine, the femoral artery grafts were open in one of four, and the internal mammary arteries were open in two of five. Histologic studies confirmed the adequacy or superiority of the vein grafts. Other conclusions drawn from these experiments were (1) that the saphenous vein bypass should originate from the ascending aorta; (2) that each bypass should have a separate aortic origin; (3) that an arrested quiet heart by means of extracorporeal circulation is necessary for satisfactory distal vein-coronary artery anastomosis; and (4) that the heart is best protected during arrest with ice slush.

Author Affiliations
Irvine, Calif

From the Department of Surgery, University of California, Irvine.

Footnotes
Accepted for publication Feb 26, 1971.

Read before the annual meeting of the Southern California Chapter of the American College of Surgeons, Palm Springs, Jan 16, 1971.

Reprint requests to Department of Surgery, University of California, Irvine, Calif 92664 (Dr. Wakabayashi).

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