Key result
Nongrafted LIMA-to-LAD collateralization after SVG is rare but may protect against severe ischemia.
Why the study?
Collateral communication between a nongrafted left internal mammary artery and the left anterior descending artery following saphenous vein bypass grafting is very rare and not well described.
Rare collateralization between a nongrafted LIMA and LAD post-CABG may protect the myocardium from severe ischemia.
A case is described in which a pericardial branch of a nongrafted left internal mammary artery communicated directly with the distal left anterior descending artery, following saphenous vein bypass grafting. This type of collateralization following coronary artery bypass surgery seems to be very rare, and perhaps could protect the myocardium from severe ischemia.
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Salachas et al. (1997) studied this question. Collateralization between a nongrafted left internal mammary artery and the left anterior descending artery after saphenous vein grafting is rare but may protect against severe ischemia.
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