Definitions for "Coronary artery bypass surgery"
Keywords:  bypass, reroute, angina, detour, graft
Using a section of the patient's leg vein to bypass a partial or complete blockage in the coronary artery system. (Coronary arteries supply blood to the heart muscle.) Surgery may be performed to provide relief from angina pectoris, to restore blood to the heart muscle after myocardial infarction (heart attack) or to prevent a possible myocardial infarction (if the coronary arteries have narrowed or are blocked). Angina pectoris is cured in almost all cases. Probability of future heart attacks is reduced. See Angina pectoris; myocardial infarction.
An operation to bypass a narrowed section or sections or coronary arteries and improve the blood supply to the heart.
An operation in which a piece of vein or artery is used to bypass a blockage in a coronary artery; performed to prevent myocardial infarction and relieve angina pectoris.