Heart bypass surgery - minimally invasive
Heart bypass surgery creates a new route, called a bypass, for blood and oxygen to reach your heart.
Minimally invasive coronary (heart) artery bypass can be done without stopping the heart. Therefore, you do not need to be put on a heart-lung machine for this procedure.
To perform this surgery:
- The heart surgeon will make a 3- to 5-inch-long surgical cut in the left part of your chest between your ribs to reach your heart.
- Muscles in the area will be pushed apart. A small part of the front of the rib, called the costal cartilage, will be removed.
- The surgeon will then find and prepare an artery on your chest wall to attach to your coronary artery that is blocked.
- Next, the surgeon will connect the prepared chest artery to the coronary artery that is blocked.
You will not be on a heart-lung machine for this surgery. A device will be attached to your heart to stabilize it. You will also receive medicine to slow the heart down.
Minimally invasive direct coronary artery bypass; MIDCAB; Robot assisted coronary artery bypass; RACAB; Keyhole heart surgery
Why the Procedure Is Performed
Your doctor may recommend a minimally invasive coronary artery bypass if you have a blockage in one or two coronary arteries, usually in the front of the heart. When one or more of the coronary arteries become partly or totally blocked, your heart does not get enough blood. This is called ischemic heart disease or coronary artery disease. It can cause chest pain (angina
Your doctor may have first tried to treat you with medicines. You may have also tried cardiac rehabilitation or other treatments, such as angioplasty with stenting.
Coronary artery disease varies from person to person. Heart bypass surgery is just one type of treatment. It is not right for everyone.
Surgeries or procedures that may be done instead of minimally invasive heart bypass are:
Your doctor will talk to you about the risks of surgery. In general, the complications of minimally invasive coronary artery bypass are lower than with open coronary artery bypass surgery.
Risks for any surgery include:
- Blood clots in the legs that may travel to the lungs
- Blood loss
- Breathing problems
- Heart attack or stroke
- Infection of the lungs, urinary tract, and chest
- Temporary or permanent brain injury
Possible risks of coronary artery bypass include:
- Memory loss, loss of mental clarity, or "fuzzy thinking." This is less common in people who have minimally invasive coronary artery bypass than in people who have open coronary bypass.
- Heart rhythm problems (arrhythmia)
- A chest wound infection. This is more likely to happen if you are obese, have diabetes, or have had coronary bypass surgery in the past.
- Low-grade fever and chest pain (together called postpericardiotomy syndrome), which can last up to 6 months
- Pain at the site of the cut
Before the Procedure
Always tell your doctor or nurse what drugs you are taking, even drugs or herbs you bought without a prescription.
During the days before the surgery:
- For the 2-week period before surgery, you may be asked to stop taking drugs that make it harder for your blood to clot. These might cause increased bleeding during the surgery. They include aspirin, ibuprofen (such as Advil and Motrin), naproxen (such as Aleve and Naprosyn), and other similar drugs. If you are taking clopidogrel (Plavix), ask your surgeon when you should stop taking it before surgery.
- Ask your doctor which drugs you should still take on the day of the surgery.
- If you smoke, try to stop
. Ask your doctor for help.
- Contact your doctor if you have a cold, flu, fever, herpes breakout, or any other illness.
- Prepare your home
so you can move around easily when you return from the hospital.
The day before your surgery:
- Shower and shampoo well.
- You may be asked to wash your whole body below your neck with a special soap. Scrub your chest 2 or 3 times with this soap.
On the day of the surgery:
- You will usually be asked not to drink or eat anything after midnight the night before your surgery. This includes chewing gum and using breath mints. Rinse your mouth with water if it feels dry, but be careful not to swallow.
- Take the drugs your doctor told you to take with a small sip of water.
Your doctor or nurse will tell you when to arrive at the hospital.
Recovery from surgery takes time, and 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 remain open and work well for many years.
This surgery does not prevent a blockage from coming back. However, you can take steps to slow it down. Things you can do include:
- Do not smoke
- Eat a heart-healthy diet
- Get regular exercise
- Treat high blood pressure, high blood sugar (if you have diabetes), and high cholesterol
You may be more likely to have problems with your blood vessels if you have kidney disease or other medical problems.
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 FG, et al. Acquired Heart Disease: Coronary Insufficiency. In: Townsend CM Jr, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 19th ed. Philadelphia, PA: Saunders Elsevier; 2012:chap 60.
Fraker TD Jr, Fihn SD, Gibbons RJ, Abrams J, Chatterjee K, Daley J, et al. 2007 chronic angina focused update of the ACC/AHA 2002 Guidelines for the management of patients with chronic stable angina: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines Writing Group to develop the focused update of the 2002 Guidelines for the management of patients with chronic stable angina. Circulation. 2007;116(23):2762-2772.
Møller CH, Perko MJ, Lund JT, et al. No major differences in 30-day outcomes in high-risk patients randomized to off-pump versus on-pump coronary bypass surgery: the best bypass surgery trial. Circulation. 2010 Feb 2;121(4):498-504. Epub 2010 Jan 18.
Thiele H, Neumann-Schniedewind P, Jacobs S, et al. Randomized comparison of minimally invasive direct coronary artery bypass surgery versus sirolimus-eluting stenting in isolated proximal left anterior descending coronary artery stenosis. J Am Coll Cardiol. 2009 Jun 23;53(25):2324-31.
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.