Heart bypass surgery creates a new route, called a bypass, for blood and oxygen to reach your heart.
Before your surgery you will get general anesthesia. You will be asleep (unconscious) and pain-free during surgery.
Once you are unconscious, the heart surgeon will make an 8 - 10-inch surgical cut in the middle of your chest. Your breastbone will be separated to create an opening. This allows your surgeon to see your heart and aorta, the main blood vessel leading from the heart to the rest of your body.
Most people who have coronary bypass surgery are connected to a heart-lung bypass machine, or bypass pump.
A newer type of bypass surgery does not use the heart-lung bypass machine. The procedure is done while your heart is still beating. This is called off-pump coronary artery bypass, or OPCAB. This procedure may be used if you could have problems while on the heart-lung machine
To create the bypass graft:
After the graft has been created, your breastbone will be closed with wires. These wires stay inside you. The surgical cut will be closed with stitches.
This surgery can take 4 to 6 hours. After the surgery, you will be taken to the intensive care unit.
You may need this procedure if you have a blockage in one or more of your coronary arteries. Coronary arteries are the small blood vessels that supply your heart with oxygen and nutrients that are carried in your blood.
When one or more of the coronary arteries becomes partly or totally blocked, your heart does not get enough blood. This is called ischemic heart disease, or coronary artery disease (CAD). It can cause chest pain (angina).
Coronary artery bypass surgery can be used to improve blood flow to your heart. Your doctor may have first tried to treat you with medicines. You may have also tried exercise and diet changes, or angioplasty with stenting.
Coronary artery disease is different from person to person. The way it is diagnosed and treated will also vary. Heart bypass surgery is just one treatment. It is not right for everyone.
Other procedures that may be used:
Risks for any surgery include:
Possible risks from having coronary bypass surgery include:
Always tell your doctor or nurse what drugs you are taking, even drugs or herbs you bought without a prescription.
During the days before your surgery:
The day before your surgery:
On the day of the surgery:
Your doctor or nurse will tell you when to arrive at the hospital.
After the operation, you will spend 3 to 7 days in the hospital. You will spend the first night in an intensive care unit (ICU). You will probably be moved to a regular or transitional care room within 24 hours.
Two to three tubes will be in your chest to drain fluid from around your heart. They are most often removed 1 to 3 days after surgery.
You may have a catheter (flexible tube) in your bladder to drain urine. You may also have intravenous (IV) lines for fluids. You will be attached to machines that monitor your pulse, temperature, and breathing. Nurses will constantly watch your monitors.
You will be encouraged to restart some activities and you may begin a cardiac rehab program within a few days.
It takes 4 to 6 weeks to start feeling better after surgery. Your health care providers will tell you how to take care of yourself at home after the surgery.
Recovery from surgery takes time. You may not see the full benefits of your surgery for 3 to 6 months. In most people who have heart bypass surgery, the grafts stay open and work well for many years.
This surgery does not prevent the coronary artery blockage from coming back. You can do many things to slow this process down, including:
You may be more likely to have problems with your blood vessels if you have kidney disease or continue to smoke.
Off-pump coronary artery bypass; OPCAB; Beating heart surgery; Bypass surgery - heart; CABG; Coronary artery bypass graft; Coronary artery bypass surgery; Coronary bypass surgery
Hillis LD, Smith PK, Anderson JL, et al. 2011 ACCF/AHA Guideline for Coronary Artery Bypass Graft Surgery: A Report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2011;124: e652-e735.
Gopaldas RR, Chu D, Bakaeen FD. Acquired heart disease: coronary insufficiency. In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 19th ed. Philadelphia, PA: Saunders Elsevier; 2012:chap 60.
Morrow DA, Boden WE. Stable ischemic heart disease. In: Bonow RO, Mann DL, Zipes DP, Libby P, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 9th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 57.
Greenhalgh J, Hockenhull J, Rao N, Dundar Y, Dickson RC, Bagust A. Drug-eluting stents versus bare metal stents for angina or acute coronary syndromes. Cochrane Database of Syst Rev. 2010:5:CD004587. DOI: 10.1002/14651858.CD004587.pub2.
Moller CH, Penninga L, Wettersley J, Steinbruchel DA, Gluud C. Off-pump versus on-pump coronary artery bypass grafting for ischaemic heart disease. Cochrane Database of Syst Rev. 2012:3:CD007224. DOI: 10.1002/14651858.CD007224.pub2.
Updated by: Norman S. Kato, MD, Surgeon with the Cardiac Care Medical Group, Encino, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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