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By Mayo Clinic staffIf lifestyle changes and medication haven't relieved your heart disease symptoms of angina, or if you have life-threatening blockages, you and your doctor will need to consider whether coronary bypass surgery or another artery-opening procedure such as angioplasty or stenting is right for you.
Coronary bypass surgery is an option if:
- You have severe chest pain caused by narrowing of several of the arteries that supply your heart muscle, leaving the muscle short of blood during even light exercise or at rest. Sometimes angioplasty and stenting will bring relief in this situation, but for some types of blockages, coronary bypass surgery may be the best option.
- You have more than one diseased coronary artery and the heart's main pump — the left ventricle — is not functioning well.
- Your left main coronary artery is severely narrowed or blocked. This artery supplies most of the blood to the left ventricle.
- You have an artery blockage for which angioplasty isn't appropriate, you've had a previous angioplasty or stent placement that hasn't been successful, or you've had stent placement but the artery has narrowed again (restenosis), then your doctor may recommend coronary artery bypass surgery.
Coronary bypass surgery doesn't cure the underlying heart disease that caused blockages in the first place. This disease is referred to as atherosclerosis or coronary artery disease. Even if you have coronary bypass surgery, lifestyle changes are still a necessary part of treatment after surgery. Medications are routine after coronary bypass surgery to lower your blood cholesterol, reduce the risk of developing a blood clot and help your heart function as well as possible.
