internal mammary artery bypass


Also found in: Acronyms.

internal mammary artery bypass

a surgical procedure to correct a coronary artery obstruction. The internal mammary artery in situ and still attached to the subclavian artery is anastomosed to the coronary artery beyond the obstruction.
References in periodicals archive ?
The left internal mammary artery bypass was occluded (old) with a 75% stenosis of the native LAD, and the venous bypass to the ramus diagonalis was open.
The other coronary artery bypass grafts (left internal mammary artery bypass to the LAD and saphenous bypass graft to the ramus diagonalis) were open.

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