CORONARY ARTERY BYPASS GRAFT SURGERYCoronary artery bypass graft surgery (CABG) involves sewing one end an artery or vein above a blocked
coronary artery and the other end below the blockage, thereby allowing blood an alternative means to get to the
heart. The arteries or veins used for the
bypass (which are known as "grafts") are usually obtained from the leg or the
chest wall.
Bypass surgery may not be possible if the
coronary artery is heavily calcified or if the disease is very widespread.
CABG can be done with or without connecting the patient to
heart-lung machine, depending on the kind of blockages and surgeon's decision. Several new surgical approaches are being developed, which can potentially reduce the discomfort and complications associated with traditional
bypass surgery.
These are collectively referred to as being "minimally invasive." In general, these approaches focus on performing
bypass surgery though a very small chest incision and performing
bypass surgery while the
heart is still beating (ie, without the need for a
heart/lung
bypass machine).
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