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heart bypass surgery

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Alternative Names
coronary artery bypass graft surgery, CABG, coronary revascularization, coronary bypass

Definition

Heart bypass surgery is an open-heart surgery that reroutes or "bypasses" blood around clogged arteries. Arteries are the blood vessels that supply freshly oxygenated blood to the tissues of the body - in this case, the heart muscle.

Over time they can become blocked by a buildup of plaque, a combination of fat, cholesterol, and other substances. This blockage, known as atherosclerosis, interferes with the blood flow, and thus reduces the oxygen supply, to the heart.

Heart bypass surgery, also known as coronary artery bypass graft surgery (CABG), reroutes the blood around these clogged arteries.

How is the procedure performed?

The two most common forms of heart bypass surgery are:

A heart-lung machine is used during the surgery to keep the blood oxygenated during the time that the heart has been stopped for the surgery.

What happens right after the procedure?

After surgery, the person is taken right away to the intensive care unit, or ICU. He or she will be given medication for the first few hours to make him or her sleep.

When the person awakens, he or she should not be alarmed to find:

The person will be given pain medication as needed. On the first day after surgery, many of the tubes will be removed. The person may be transferred to the telemetry unit (the "step-down" unit), if there have been no complications.

In the telemetry unit the person will:

The average hospital stay following heart bypass surgery is 4 to 7 days.

What happens later at home?

The recovery time at home will last for about 6 weeks. During this time, the incision will heal slowly, with some redness, tenderness and swelling present for several months.

The person will be advised to:

This is a good time for a person to make changes to any unhealthy lifestyle habits that may have contributed to his or her heart problem.

For instance, a person should:

What are the potential complications after the procedure?

Potential complications after a heart bypass operation are:

These complications can be minimized by good surgical technique and careful pre- and postoperative care in the hands of an experienced medical team.


Author:Gail Hendrickson, RN, BS
Date Written:04/08/00
Medical Review:Daniel VanHamersveld, MD
Date Written:9/21/2006
Reviewer:Reginald Finger, MD
Date Reviewed:10/23/2006
Contributors
Potential conflict of interest information for reviewers available on request