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Coronary artery disease is the most common type of heart disease. It's also the number one killer of both men and women in the United States.
When you have it, your heart muscle doesn't get enough blood. This can lead to serious problems, including heart attack.
It can be a shock to find out that you have coronary artery disease. Many people only find out when they have a heart attack. Whether or not you have had a heart attack, there are many things you can do to slow coronary artery disease and reduce your risk of future problems.
Coronary artery disease is caused by hardening of the arteries, or atherosclerosis. This means that fatty deposits called plaque (say "plak") build up inside the arteries. Arteries are the blood vessels that carry oxygen-rich blood throughout your body.
Atherosclerosis can affect any arteries in the body. When it occurs in the ones that supply blood to the heart (the coronary arteries), it is called coronary artery disease.
When plaque builds up in the coronary arteries, the heart may not get the blood it needs to work well. Over time, this can weaken or damage the heart. If a plaque tears, the body tries to fix the tear by forming a blood clot around it. The clot can block blood flow to the heart and cause a heart attack.
Symptoms can happen when the heart is working harder and needs more oxygen, such as during exercise. Symptoms include:
Less common symptoms include a fast heartbeat, feeling sick to your stomach, and increased sweating. Some people don't have any symptoms. In rare cases, a person can have a "silent" heart attack, without symptoms.
Your doctor will do a physical exam and ask questions about your past health and your risk factors. Risk factors are things that increase the chance that you will have coronary artery disease.
Some common risk factors are being older than 65; smoking; having high cholesterol, high blood pressure, or diabetes; and having heart disease in your family.
If your doctor thinks that you have coronary artery disease, you may have tests to check how well your heart is working. These tests include an electrocardiogram (EKG or ECG), a chest X-ray, an exercise electrocardiogram, and blood tests. You may also have a coronary angiogram to check blood flow to the heart.
Treatment focuses on lowering your risk for heart attack and stroke and managing your symptoms. Lifestyle changes, medicine, and procedures are used.
Health Tools help you make wise health decisions or take action to improve your health.
Coronary artery disease is caused by hardening of the arteries, or atherosclerosis. This means that fatty deposits called plaque build up inside the arteries. Arteries are the blood vessels that carry oxygen-rich blood throughout your body.
Atherosclerosis can affect any arteries in the body. When it occurs in the arteries that supply blood to the heart (the coronary arteries), it is called coronary artery disease.
When plaque builds up in the coronary arteries, the heart may not get the blood that it needs to work well. This is called ischemia (say "is-KEE-mee-uh"). Ischemia can cause symptoms such as chest pain or pressure. Over time, ischemia can weaken or damage the heart. Sometimes the plaque buildup does not limit blood flow.
If the plaque breaks apart, it can cause a heart attack. A tear or rupture in the plaque tells the body to repair the injured artery lining, much as the body might heal a cut on the skin. A blood clot forms to seal the area. The blood clot can completely block blood flow to the heart muscle and cause a heart attack.
The most common symptoms of coronary artery disease are angina (say "ANN-juh-nuh" or "ann-JY-nuh") and shortness of breath when exercising or doing other vigorous activity. Women are somewhat more likely than men to have other symptoms like nausea and back or jaw pain.
Angina symptoms include chest pain or pressure or a strange feeling in the chest. This feeling can be in areas other than the chest, such as in the neck or jaw. Angina can be stable or unstable.
Some people don't have any symptoms. This is called "silent ischemia." In rare cases, you can even have a "silent heart attack," a heart attack without symptoms.
Things that increase your risk of coronary artery disease are the things that lead to a problem called atherosclerosis, or hardening of the arteries. Atherosclerosis is the starting point for coronary artery disease, peripheral arterial disease, heart attack, and stroke.
Your doctor can help you find out your risk of heart disease, heart attack, and stroke. Knowing your risk is just the beginning for you and your doctor. Knowing your risk can help you and your doctor talk about whether you need to lower your risk. Together, you can decide what treatment is best for you.
Things that increase your risk include:
Your age, sex, and race can also raise your risk. For example, your risk increases as you get older.
To learn how to lower your risk, see Prevention.
Do not wait if you think you are having a heart attack. Some people aren't sure whether they're having one, or they don't want to bother others, so they wait. But getting help fast can save your life.
Call 911 or other emergency services immediately if you have symptoms of a heart attack or are with someone who has symptoms. Symptoms may include:
After you call 911, the operator may tell you to chew 1 adult-strength or 2 to 4 low-dose aspirin. Wait for an ambulance. Do not try to drive yourself. By taking an ambulance, you may be able to start treatment before you arrive at the hospital.
Nitroglycerin. If you typically use nitroglycerin to relieve angina and if one dose of nitroglycerin has not relieved your symptoms within 5 minutes, call 911. Do not wait to call for help.
Call your doctor if:
Your doctor will do a physical exam and a number of tests to find out your risk for coronary artery disease and to diagnose it.
Your doctor will check your blood pressure and cholesterol levels and ask about other risk factors, such as your age and whether you smoke, to help find out your risk for getting heart disease.
To help find your risk, your doctor may do other tests. These include an ankle-brachial index test, C-reactive protein (CRP) test, or a coronary calcium scan.
If your doctor recommends a test, ask what it is for and why you need it. You can help decide if a test is right for you. Talk with your doctor to make that decision. See the topic Heart Tests: When Do You Need Them?
If your doctor thinks you may have heart disease, you will need some tests to make sure. Most often, the first tests include:
Other tests may include:
Lifestyle changes are the first step for anyone with coronary artery disease. Healthy habits can slow or even stop the disease and improve the quality and length of your life. These habits include:
A cardiac rehabilitation program can help you make these changes.
It's also important to manage any health problems you have. If you have high blood pressure, high cholesterol, or diabetes, be sure you're doing everything you can to keep these conditions under control.
To learn what you can do, see Living With Heart Disease.
One Man's Story:
"I've had to work at keeping my weight under control, and that has really helped my cholesterol. When you have heart disease, you learn to eat better for the rest of your life. And if you don't, you're asking for trouble."— Alan
Read more about Alan and the lessons he's learned about diet and exercise.
You will probably have to take several medicines that lower your risk of a heart attack. These include:
To manage symptoms, you might take an angina medicine, such as nitroglycerin.
If your angina symptoms get worse even though you are taking medicines, you may think about having a procedure to improve blood flow to your heart. These include angioplasty and bypass surgery.
Palliative care is a kind of care for people who have a serious illness. It's different from care to cure your illness. Its goal is to improve your quality of life—not just in your body but also in your mind and spirit.
You can have this care along with treatment to cure your illness. You can also have it if treatment to cure your illness no longer seems like a good choice.
Palliative care providers will work to help control pain or side effects. They may help you decide what treatment you want or don't want. And they can help your loved ones understand how to support you.
If you're interested in palliative care, talk to your doctor.
For more information, see the topic Palliative Care.
If your heart disease is advanced, it may shorten your life. So you need to decide what kind of care you want at the end of your life.
It can be hard to have talks with your doctor and family about the end of your life. But making these decisions now may bring you and your family peace of mind. Your family won't have to wonder what you want. And you can spend your time focusing on your relationships.
You will need to decide if you want life-support measures if your health gets very bad. An advance directive is a legal document that tells doctors how to care for you at the end of your life. You also can say where you want to have care. And you can name someone who can make sure your wishes are followed.
For more information, see the topic Care at the End of Life.
You can help prevent coronary artery disease by taking steps toward a heart-healthy lifestyle. A heart-healthy lifestyle can also help you reduce risk factors such as high cholesterol and high blood pressure.
Manage other health problems that raise your risk for a heart attack. These include diabetes, high blood pressure, and high cholesterol. A heart-healthy lifestyle can help you manage these problems. But you may also need to take medicine.
Talk to your doctor before you start taking aspirin every day. Aspirin can help certain people lower their risk of a heart attack or stroke. But taking aspirin isn't right for everyone, because it can cause serious bleeding.
You and your doctor can decide if aspirin is a good choice for you based on your risk of a heart attack and stroke and your risk of serious bleeding. If you have a low risk of a heart attack and stroke, the benefits of aspirin probably won't outweigh the risk of bleeding.
Coronary artery disease most often begins when the inside walls of the coronary arteries are damaged because of another health problem, such as high cholesterol, high blood pressure, diabetes, or smoking. This damage can lead to atherosclerosis, or hardening of the arteries. This means that plaque, made of fats and other substances, builds up in the coronary arteries.
If your heart disease gets worse, your arteries will narrow, and less blood will flow to your heart. You may start to have angina symptoms, such as chest pain or discomfort when you exercise or feel stressed. This is called stable angina.
In some cases, sudden and serious problems can happen. Some types of plaque are unstable. They can suddenly tear and cause blood clots to form. These clots block blood flow to your heart, causing a heart attack or unstable angina.
Over time, you may have other health problems caused by coronary artery disease. Low blood flow can make it harder for your heart to pump. This can lead to heart failure or atrial fibrillation. Atrial fibrillation increases the risk of stroke.
A diagnosis of coronary artery disease can be hard to accept and understand. If you don't have symptoms, it may be especially hard to recognize that heart disease is serious and can lead to other health problems.
It's important to talk with your doctor to learn about the disease and what you can do to help manage it and keep it from getting worse.
Your doctor may suggest that you attend a cardiac rehabilitation (rehab) program. In cardiac rehab, you will get education and support that help you build new, healthy habits, such as eating right and getting more exercise.
Medicines are an important part of your treatment.
Depression and heart disease are linked. People with heart disease are more likely to get depressed. And if a person has both depression and heart disease, he or she may not stay as healthy as possible. This can make depression and heart disease worse.
If you think you may have depression, talk to your doctor. Take this short quiz to check your symptoms: Interactive Tool: Are You Depressed?For more information, see the topic Depression.
To reduce your risk of heart attack or stroke, you will need to control other health problems you may have. These problems include diabetes, high cholesterol, and high blood pressure.
Medicines are an important part of your treatment. Using them correctly can lower your risk of having a heart attack or dying from coronary artery disease.
Aspirin, ibuprofen, and naproxen are all nonsteroidal anti-inflammatory drugs (NSAIDs) and can relieve pain and inflammation. But only aspirin will reduce your risk for heart attack or stroke. Don't substitute ibuprofen or naproxen for aspirin. If you need to take an NSAID for a long time, talk with your doctor to see if it is safe for you.
Other cholesterol medicines, such as ezetimibe, may be used along with a statin.
Stable angina can often be controlled with medicine such as:
If you take nitrates
Do not use erection-enhancing medicines such as sildenafil (Viagra), tadalafil (Cialis), or vardenafil (Levitra) if you take nitroglycerin or other nitrates for angina. Combined, these two drugs can cause a serious drop in blood pressure. Talk to your doctor. There are other medicines that may work instead to ease your angina.
For more help with controlling angina, see:
Medicine is a powerful tool to help you manage your heart disease. To get the most of your medicines, take them as prescribed. This may be hard because of how many you have to take and their cost. You may also worry about side effects.
You may have regular blood tests to monitor how the medicine is working in your body. Your doctor will likely let you know when you need to have the tests.
Sometimes coronary artery bypass graft surgery is needed to improve blood flow to the heart. During this surgery, a doctor connects (grafts) a healthy artery or vein from another part of your body to the narrowed or blocked coronary artery. The grafted artery goes around (bypasses) the narrowed or blocked part of the artery. The bypass provides a new pathway for blood to your heart.
If you have surgery, you'll still need to make changes in the way you eat and how much you exercise. These changes, along with not smoking, will give you the best chance of living a longer, healthier life. A cardiac rehabilitation program can help you make these healthy changes.
Angioplasty is a procedure that widens the coronary artery to improve blood flow to the heart. It is done using a thin, soft tube called a catheter, which is inserted in your artery.
Angioplasty is not surgery. It doesn't use large cuts (incisions) or require anesthesia to make you sleep.
Most of the time, stents are placed during angioplasty. The stent keeps the artery open. When stents are used, there is a smaller chance that the artery will become narrow again.
If you decide to have angioplasty, you'll still need to make changes in the way you eat and how much you exercise. These changes, along with not smoking, will give you the best chance of living a longer, healthier life. A cardiac rehabilitation program can help you make these healthy changes.
Current as of:
August 31, 2020
Author: Healthwise StaffMedical Review: Kathleen Romito MD - Family MedicineMartin J. Gabica MD - Family MedicineAdam Husney MD - Family MedicineStephen Fort MD, MRCP, FRCPC - Interventional Cardiology
Current as of: August 31, 2020
Author: Healthwise Staff
Medical Review:Kathleen Romito MD - Family Medicine & Martin J. Gabica MD - Family Medicine & Adam Husney MD - Family Medicine & Stephen Fort MD, MRCP, FRCPC - Interventional Cardiology
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