Reverse flow in the internal mammary artery coronary graft in the presence
of subclavian stenosis is rare. We describe a 67-year-old man who 7 years a
fter coronary artery surgery was admitted with left subclavian artery steno
sis and retrograde flow in the pedicled left internal mammary artery graft.
Subsequent redo triple coronary artery bypass grafts included regrafting t
he left internal mammary artery graft to a new vein conduit.