Carotid Artery Disease as a Marker for the Presence of Severe Coronary Artery Disease in Patients Evaluated for Chest ...
Heart Bypass Surgery
Heart bypass surgery is when a surgeon takes a blood vessel from another part of your body to go around, or bypass, a blocked artery. The result is that more blood and oxygen can flow to your heart again.
Imagine you're on a highway. An accident causes traffic to pile up ahead. Emergency crews redirect cars around the congestion. Finally, you're able to get back on the highway and the route is clear. Heart bypass surgery is similar.
It can help lower your risk for a heart attack and other problems. Once you recover, you'll feel better and be able to get back to your regular activities.
Bypass surgery is also known as coronary artery bypass grafting (CABG, pronounced "cabbage"), coronary artery bypass surgery, and coronary artery bypass graft surgery. It's the most common type of open-heart surgery in the U.S., with nearly 400,000 procedures done every year. Most people have great results and live symptom-free for a decade or more.
You'll still need a healthy diet, exercise, and probably medicine to prevent another blockage. But first, you'll want to know what to expect from the surgery, how to prepare, what complications can happen, and what the recovery is like.
In heart bypass surgery, a blood vessel from another part of your body is used to create a new route for blood flow around a blocked artery. (Photo Credit: SCIENCE PHOTO LIBRARY/Getty Images)
There are several different kinds of bypass procedures. Your surgeon will recommend the best operation for you.
Traditional. This is the procedure used most often. Your chest is cut open and your heart is stopped, with a machine circulating your blood during the surgery.
Off-pump. Your chest is still open, but your heart is left beating. The area being worked on is kept still by special equipment.
Minimally invasive. This is also called a keyhole procedure. In this, the surgeon makes small cuts between your ribs to get access to your heart. They'll use cameras to guide the instruments, or it may be done robotically.
Your surgery will also be described by how many of your coronary arteries are blocked:
Bypass surgery treats symptoms of coronary artery disease. That happens when a waxy substance called plaque builds up inside the arteries in your heart and blocks blood and oxygen from reaching it.
Your doctor may suggest heart bypass surgery if:
Coronary artery disease can lead to a heart attack. It can cause a blood clot to form and cut off blood flow. You may have bypass surgery as an emergency procedure if you've had a heart attack and other treatments aren't working, or if you have certain complications.
Before your surgery, you'll get lab and imaging tests to check your overall health and to see which arteries are blocked. You may have:
Your doctor will also let you know if you need to make any changes to your diet, lifestyle, or medications before the surgery. Also, tell your doctor about any vitamins and supplements you take, even if they are natural, in case they could affect your risk of bleeding.
You'll also need to make plans for recovery after your surgery.
The most common kind of bypass surgery is the traditional method. For this procedure, you'll be asleep the whole time. Most operations take 3-6 hours.
A breathing tube goes into your mouth. It's attached to a ventilator, which will breathe for you during the procedure and right afterward. The surgical team will put a thin tube called a catheter into your bladder to collect urine. A needle with a tube attached called an IV line is placed in your vein to give you fluids and medications.
A surgeon makes a long cut down the middle of your chest. Then, they'll spread your rib cage open so that they can reach your heart.
Your surgical team will use medication to temporarily stop your heart. A machine called a heart-lung machine will keep blood and oxygen flowing through your body while your heart isn't beating.
Next, the surgeon will remove a blood vessel, called a graft, from another part of your body, like your chest, leg, or arm. They'll attach one end of it to your aorta, a large artery that comes out of your heart. Then, they'll attach the other end to an artery below the blockage.
The graft creates a new route for blood to travel to your heart. If you have multiple blockages, your surgeon may do more bypass procedures during the same surgery.
You'll wake up in an intensive care unit (ICU). The breathing tube will still be in your mouth. You won't be able to talk, and you'll feel uncomfortable. Nurses will be there to help you. They'll remove the tube after a few hours when you can breathe on your own.
The catheter in your bladder will come out when you're able to get up and use the bathroom on your own.
Once you're able to eat and drink on your own and no longer need IV medications, the IV line will also come out.
Fluids will build up around your heart after the procedure, so your doctor will put tubes into your chest. They'll be there for 1-3 days after surgery to allow the fluid to drain.
You may feel soreness in your chest. You'll have the most discomfort in the first 2-3 days after the procedure. You'll probably get pain medicines for that.
You'll also be hooked up to machines that keep track of your vital signs, such as your heart rate and blood pressure, around the clock.
You should be able to start walking 1-2 days after surgery. You'll stay in the ICU for a few days before you're moved to a hospital room. You'll stay there for 3-5 days before you go home.
It's a gradual process. You may feel worse right after surgery than you did before. You might not be hungry and even be constipated for a few weeks after the surgery. You could have trouble sleeping while you're in the hospital. If the surgeon takes out a piece of a healthy vein from your leg, you may have some swelling there. This is normal.
Recovery takes time, but you'll feel better each day. It may take up to 3 months for your body to completely recover from bypass surgery.
You'll visit your doctor several times during the first few months to track your progress. Call them if your symptoms don't improve or you're feeling worse. You may need to be seen right away if you have:
Talk with your doctor about the best time to return to your normal day-to-day activities. What's right for you will depend on a few things, including:
You'll need to ease back in. Some common plans include:
Driving. Usually, it's advised to wait 4-6 weeks after surgery. You need to make sure your concentration is back before you get behind the wheel.
Housework. Take it slow. Start with the simple things you like to do and have your family help with the heavy stuff for a bit while you recover.
Sex. In most cases, you should be physically good to go in about 3 weeks. But you may lose interest in sex for a while after your surgery, so it could be as long as 3 months before you're ready to be intimate again.
Work. Apart from the physical requirements of your job, your concentration and confidence will have to come back. Most folks are able to resume light duty after about 6 weeks. You should be back to full strength after about 3 months.
Exercise. Your doctor may suggest something called cardiac rehabilitation. It's a customized, medically supervised exercise program. It also provides lifestyle education, which can include help with nutrition. Once the program is completed, you can work up to whatever fitness level you're comfortable with.
As with other surgeries, bypass surgery comes with potential problems. These include:
It's also possible that the graft might fail and have to be redone.
Many things affect these risks, including your age, how many bypasses you get, and any other medical conditions you have. You and your surgeon will discuss these before your operation.
Once you've recovered, your symptoms of angina will be gone or get much better. You'll be able to be more active, and you'll have a lower risk of getting a heart attack. Best of all, the surgery can add years to your life.
But bypass surgery isn't a cure for coronary artery disease. The same things that caused your arteries to become blocked in the first place can also clog the grafted arteries. You'll need to take steps to control medical conditions such as high blood pressure, high cholesterol, and diabetes, and change any habits that increase your heart disease risk.
There are several key elements to living well after a heart bypass.
Medications
Your doctor may prescribe medications to prevent complications and manage health conditions that can damage your arteries. This may include:
You may need to take these for the rest of your life.
Cardiac rehab
Your hospital or medical center may offer cardiac rehabilitation to help you regain your strength, learn healthy lifestyle habits, and tend to your emotional health after bypass surgery. A program will typically involve several in-person group sessions each week for about 3 months, then you'll use what you've learned on your own. You'll work with a team of specialists, such as exercise physiologists, nutritionists, and counselors.
Lifestyle changes
You can make choices every day to protect your heart health for the long term:
Stop smoking. If you smoke, quitting is one of the most important things you can do to protect your heart and your overall health. Your doctor can help you choose a strategy that's best for you.
Get active. Experts recommend 30-60 minutes of moderate-intensity exercise, such as fast walking or swimming, most days. But after bypass surgery, you'll need to work up to that gradually. A cardiac rehab program can teach you different kinds of exercise and help you do them safely. Get your doctor's OK before you start, and remember that any activity is better than no activity.
Manage your weight. Ask your doctor what's a healthy weight for you. If you're overweight, losing weight can lower your blood pressure and blood sugar and improve your cholesterol levels.
Choose heart-healthy foods. Your doctor may recommend a specific eating plan, such as the DASH program that's been proven to lower blood pressure and "bad" cholesterol. But in general, heart-healthy eating contains these ingredients:
Lower your stress. Exercise, meditation, and relaxation techniques can protect your body from the harmful effects of stress. It may also help to identify what's causing you stress and make changes if you can. A therapist can help you find healthy ways to cope.
Get good sleep. Sleep is the time when your body repairs itself, including your heart tissue and blood vessels. Poor quality sleep can lead to heart disease and high blood pressure. Aim for 7-9 hours of sleep a night. If that's hard for you, try to:
Your doctor can treat you for sleep problems such as sleep apnea or insomnia.
Getting support
It's not unusual to feel anxiety and depression after having heart bypass surgery. Talk to your doctor about getting therapy or medication to help. Look for a support group where you can connect with others who understand what you're going through. You may need to make some big changes to the way you live, and that won't be easy. Explain to your family members how they can help you by supporting your healthy choices or even joining you.
Not everyone is a good candidate for bypass surgery. Your age or other health conditions may make it too risky. In that case, your doctor may try a different strategy.
Angioplasty. This is also called percutaneous coronary intervention (PCI). A surgeon threads a deflated balloon attached to a special tube up to your coronary arteries. Once it's there, they inflate the balloon to widen your blocked areas. Most times, it happens in combination with the installation of something called a stent, a wire mesh tube that props your artery open.
There's also a version of angioplasty that uses a laser, instead of a balloon, to eliminate the plaque that clogs your arteries.
Minimally invasive heart surgery. This is a form of bypass surgery that may be less risky for you than the traditional open-chest method. Your surgeon puts instruments through small incisions in your chest and uses a video monitor as a guide to do the work. Unlike traditional surgery, your heart is still beating during this procedure.
Medication. Your doctor may treat your coronary artery disease with medications such as blood thinners or anti-clotting drugs, drugs to lower cholesterol, and drugs to lower your blood pressure.
Heart bypass surgery is a procedure to improve blood flow to your heart when you have coronary artery disease. A surgeon takes a blood vessel from another part of your body to go around, or bypass, a blocked artery. Most people have improved symptoms for 10 years or more after the surgery. Medication and healthy lifestyle choices can help keep your arteries from becoming blocked again.
How serious is heart bypass surgery?
Bypass surgery is a major operation. It's done to treat serious coronary artery disease where one or more arteries are blocked. You'll probably be in the hospital for about a week, and it takes as long as 3 months to recover completely.
What's the difference between open-heart surgery and bypass surgery?
In open-heart surgery, a surgeon opens your chest by cutting through your breastbone and spreading your ribs to get access to your heart. Traditional heart bypass is a type of open-heart surgery. The procedure is also used for other kinds of heart surgery, such as valve replacements or heart transplants.
Risk Factors For Patients Undergoing Coronary Artery Bypass Graft Surgery Updated
Awareness for an additional risk category for patients undergoing routine coronary artery bypass surgery- low to moderate levels of inflammation- has been raised in a new study published in the March issue of Anesthesiology C-reactive protein (CRP) is a recognized marker of systemic inflammation, routinely measured in patients to assess their risk for heart attack. CRP has emerged as a predictor of adverse cardiac events in healthy, non-surgical patients along with the more universally recognized cardiac risk factors of high cholesterol, high blood pressure, diabetes, smoking and obesity. In this new study, research on CRP levels has been extended to the cardiac surgical population; investigating CRP levels as additional predictors for adverse events and increased mortality in otherwise healthy patients undergoing coronary artery bypass surgery."Based on previous research, we knew that patients who present for CABG surgery with high levels of circulating CRP are at risk for increased adverse outcomes, including extended hospital stays and elevated mortality rates, compared to patients with normal or very low CRP levels. These risks are increased if high CRP levels are associated with ongoing myocardial ischemia or infarction," said study author Tjorvi E. Perry, M.D., MMSc. "What was not known were the implications of slightly to moderately elevated CRP levels in low-acuity patients undergoing routine CABG surgery."
Dr. Perry and colleagues from Brigham and Women''s Hospital in Boston and Baylor College of Medicine Division of Cardiovascular Anesthesia, Texas Heart Institute, St. Luke''s Episcopal Hospital in Houston, studied 914 patients undergoing routine, non-emergency CABG surgery to determine whether circulating preoperative CRP levels in patients could help predict hospital length of stay and long-term postoperative survival.
Patients were stratified to four categories based on preoperative CRP levels; 10 mg/L. Excluding patients with increased CRP levels due to infections, autoimmune disease or ongoing myocardial ischemia or infarction, researchers examined the association between the stratified CRP categories and mortality (death) after CABG surgery.A total of 87 patients (9.5 percent) died over a mean postoperative follow-up period of 4.8+/-1.5 years. Using a proportional-hazards regression model, results revealed that the 3-10 mg/L CRP group and the >10mg/L CRP group were associated with extended hospital lengths of stay and increased long-term mortality.
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"The findings confirm that patients with circulating CRP levels >10 mg/L are at greater risk for adverse events when compared with patients in the lowest preoperative CRP level (Dr. Perry suggested that his findings indicate not only that CRP levels are an important predictor of adverse outcomes in otherwise low-risk cardiac surgical patients undergoing routine CABG surgery, but also that CRP levels may be a target for perioperative therapeutic intervention to reduce the risk for adverse events after surgery."
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For more information visit the Anesthesiology Web site at www.Anesthesiology.Org.The American Society of AnesthesiologistsAnesthesiologists: Physicians providing the lifeline of modern medicine. Founded in 1905, the American Society of Anesthesiologists is an educational, research and scientific association with 44,000 members organized to raise and maintain the standards of the medical practice of anesthesiology and improve the care of the patient.
For more information on the field of anesthesiology, visit the American Society of Anesthesiologists Web site at www.Asahq.Org. For patient information, visit www.Lifelinetomodernmedicine.Com.
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