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Coronary Artery Bypass Surgery (CABG)


Coronary artery bypass grafting (CABG) surgery is the most common type of heart surgery. When medication and/or other procedures are not able to improve the blood flow to the heart, bypass surgery improves the blood flow to the heart muscle, which provides relief of angina symptoms and may increase life expectancy.

During surgery, the patient is connected to the heart-lung bypass machine, which takes over the function of the heart and lungs during surgery. A portion of a blood vessel from the patient’s leg, arm or inner chest wall is used to bridge the blocked or diseased area and to improve blood flow to the heart muscle. 

The vein or artery is attached to the aorta (large blood vessel that supplies blood to the heart) at one end and the other end is attached to the coronary artery below the area of blockage or disease. The diseased area is essentially “bypassed” and the coronary artery beyond the blockage receives the oxygen and nutrient-rich blood that is delivered to the heart muscle.
    Coronary Artery bypass
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Southlake Regional Health Centre
596 Davis Drive, Newmarket, Ontario   L3Y 2P9
Tel: 905-895-4521   |   TTY: 905-952-3062
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