AbstractDisappointing long‐term results with saphenous vein graft (SVG) for coronary bypass and excellent long‐term results with internal mammary artery (IMA) to coronary bypass have prompted a search and research for other alternative coronary bypass conduits. Experience with the radial artery was disappointing due to early failure of those grafts. Likewise, conduits of artificial materials and homograft veins have not produced acceptable long‐term re