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Coronary Artery Disease
Overview
What is coronary artery disease? Coronary artery disease occurs when fatty deposits called plaque (say "plak") build up inside the coronary arteries. The coronary arteries wrap around the heart and supply it with blood and oxygen. When plaque builds up, it narrows the arteries and reduces the amount of blood that gets to your heart. This can lead to serious problems, including heart attack. Coronary artery disease (also called CAD) is the most common type of heart disease. It is also the number one killer of both men and women in the United States. 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. What causes coronary artery disease? Coronary artery disease is caused by hardening of the arteries, or atherosclerosis. Atherosclerosis occurs when plaque builds 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, it is called coronary artery disease. Plaque is a fatty material made up of cholesterol, calcium, and other substances in the blood. To understand why plaque is a problem, compare a healthy artery with an artery with atherosclerosis:
See a picture of
a normal
artery and an artery narrowed by plaque When plaque builds up in the coronary arteries, the heart doesn't
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. See a picture of
how plaque
causes a heart attack What are the symptoms? Usually people with coronary artery disease don't have symptoms until after age 50. Then they may start to have symptoms at times when the heart is working harder and needs more oxygen, such as during exercise. Typical first symptoms include:
Some people don't have symptoms. In rare cases, a person can have a “silent” heart attack, without symptoms. To find out your risk for a heart attack in the next 10 years, use
this
Interactive Tool: Are You at Risk for a Heart
Attack? How is coronary artery disease diagnosed? To diagnose coronary artery disease, doctors start by doing a physical exam and asking 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. The more risk factors you have, the more likely it is that you have coronary artery disease. If your doctor thinks you have coronary artery disease, you may have tests, such as:
Your doctor may order other tests to look at blood flow to your heart. You may have a coronary angiogram if your doctor is considering a procedure to remove blockages, such as angioplasty or bypass surgery. How is it treated? Treatment focuses on taking steps to manage your symptoms and reduce your risk for heart attack and stroke. Some risk factors you can't control, such as your age or family history. Other risks you can control, such as high blood pressure and high cholesterol. Lifestyle changes can help lower your risks. You may also need to take medicines or have a procedure to open your arteries. Lifestyle changes are the first step for anyone with coronary artery disease. These changes may stop or even reverse coronary artery disease. To improve your heart health:
Changing old habits may not be easy, but it is very important to help you live a healthier and longer life. Having a plan can help. Start with small steps. For example, commit to eating five servings of fruits and vegetables a day. Instead of having dessert, take a short walk. When you feel stressed, stop and take some deep breaths. Medicines may be needed in addition to lifestyle changes. Medicines that are often prescribed for people with coronary artery disease include:
Procedures may be done to improve blood flow to the heart.
What else can you do?To stay as healthy as possible, it is important to:
Health ToolsHealth tools help you make wise health decisions or take action to improve your health.
Frequently Asked Questions
Cause
Coronary artery disease is caused by the buildup of
plaque on the inside of your
coronary
arteries Coronary artery disease (CAD) typically begins when the inside walls of the coronary arteries are damaged, due to one or more underlying conditions, such as: Plaque, which is made up of excess cholesterol, calcium, and other
substances in your blood, builds up on the damaged inner walls of your coronary
arteries. This process usually occurs throughout the body and is called
atherosclerosis, or "hardening of the arteries." See
pictures of
atherosclerosis Over time, plaque buildup narrows the coronary arteries and can lead to ischemia (insufficient blood flow to the heart muscle). Ischemia can weaken the heart muscle, but it usually does not cause heart muscle cells to die. However, heart muscle cells can die if blood flow is severely reduced or completely blocked for a period of time. This is called myocardial infarction, or heart attack.
SymptomsTypically, the earliest symptoms of coronary artery disease (CAD) are chest pain, also called angina, and shortness of breath with exertion. Other symptoms of coronary artery disease include a fast heartbeat, weakness, dizziness, nausea, and increased perspiration. Heart attack symptoms in men and women often differ. Men usually have the typical type of chest pain that feels like squeezing or pressure. But the pain is more severe than usual and does not go away with rest. Women, older adults, and people with diabetes may have symptoms different from chest pain. These groups of people may have symptoms like breathlessness, heartburn, nausea, fatigue, jaw pain, or back pain. In one study, many women reported warning symptoms 1 month before having a heart attack. These symptoms included unusual fatigue, sleep disturbances, and shortness of breath. Only 30% reported chest pain, which the majority of men report.2 For more information about the differences between coronary artery disease in women and men, see women and coronary artery disease. Unfortunately, sometimes a heart attack is the first sign of coronary artery disease. According to the large, 50-year Framingham Heart Study, over 50% of men and 63% of women who died suddenly of coronary artery disease (mostly from heart attack) had no previous symptoms of this disease.3 Some people who have coronary artery disease and insufficient blood flow to the heart muscle (ischemia) do not have any symptoms. This is called "silent ischemia." In rare instances, you can even have a "silent heart attack," a heart attack without symptoms. Angina Chest pain is the most common symptom of coronary artery disease. Many people have chest pain, although it may be caused by conditions other than coronary artery disease. Angina, the chest pain related to coronary artery disease, may have a distinct pattern. The chest pain of angina can be described as:
The chest pain of angina usually begins at a low level, then gradually increases over several minutes to a peak. Angina that starts with an activity usually will decrease when the activity is stopped. Chest pain that begins suddenly or lasts only a few seconds is less likely to be angina. Angina usually begins in the chest, but it can also start or spread to different areas of the body, such as:
Some people may experience tingling or numbness in the arm, hand, or jaw when angina is present. See a picture of
areas
that may be affected by angina. Angina is often brought on by activities that make the heart work harder because the heart needs more oxygen than can be delivered through the narrowed arteries supplying it. Some of these activities include:
Many people have stable angina, which is predictable and diminishes after they rest and take nitroglycerin, a medication that opens blood vessels to improve blood flow. But if there is a change in the usual pattern of your angina, you may have unstable angina. In unstable angina, chest pain occurs at rest or with less and less exertion, may be more severe and last longer, or takes longer or fails to respond to nitroglycerin. Because unstable angina can progress to a heart attack, it requires immediate medical attention. For information about their differences, see stable versus unstable angina. For information about variant, or Prinzmetal's, angina and other kinds of angina, see types of angina. For more information, see the topic Heart Attack and Unstable Angina. Chest pain can be a symptom of many other conditions. For example, anxiety, inflammation in or injury to the chest wall, or a blood clot in the lung can cause pain in the chest.
What Increases Your RiskSome risk factors for coronary artery disease (CAD), such as your sex, age, and family history, cannot be changed. Other risk factors for CAD that are related to lifestyle often can be changed. Your chance of developing coronary artery disease increases with the number of risk factors you have. Coronary artery disease risk factors include:
Smoking, high cholesterol, high blood pressure, and physical inactivity are all risk factors for coronary artery disease that can be modified and in some cases eliminated with lifestyle changes and medication. Diabetes and obesity can sometimes be prevented when lifestyle changes are made early in life. Risk factors that you cannot change:
Research has shown that having metabolic syndrome also increases your risk of coronary artery disease.4 People with metabolic syndrome have a group of abnormal findings related to their metabolism, including excess body fat (particularly abdominal obesity); high triglycerides, high blood pressure, and high fasting glucose; and low HDL. The National Cholesterol Education Program (NCEP) has developed a risk assessment calculator to estimate your risk of having a heart attack or suffering from coronary death over 10 years. This tool is designed to estimate risk in adults age 20 and older who do not have heart disease or diabetes. Click here to calculate your
risk of having a heart attack in the next 10
years
When to Call a DoctorCall 911 or other emergency services immediately if you have any of the following symptoms:
Women are more likely to have symptoms such as shortness of breath, heartburn, nausea, jaw pain, back pain, or fatigue. After calling 911 or other emergency services, you should chew 1 regular-strength aspirin (325 mg), if you are not allergic to aspirin or unable to take aspirin for some other reason. By calling 911 and taking an ambulance to the hospital, you may be able to start treatment before you arrive at the hospital. If any complications occur along the way, ambulance personnel are trained to evaluate and treat them. If an ambulance is not readily available, have someone else drive you to the emergency room. Do not drive yourself to the hospital. If you witness a person becoming unconscious, call 911 or other emergency services and start cardiopulmonary resuscitation (CPR). The emergency operator can coach you on how to perform CPR. For more information, see the CPR section in the topic Dealing With Emergencies. You should contact your doctor immediately if you have new, more frequent, or severe episodes of chest pain or discomfort, which may indicate you have an increased risk for a heart attack. Talk to your doctor if you have:
Treat symptoms as early as possible to help prevent permanent damage to your heart. Chest pain and shortness of breath are more likely to be serious and related to your heart if:
The following are clues that your chest pain is less likely to be caused by a heart problem:
If any type of chest pain continues, it needs to be evaluated by a doctor. Because many vital organs are found in the chest, even chest pain that is not caused by coronary artery disease may be a sign of a serious problem in the aorta (the large blood vessel that leads out of the heart), lungs, or digestive organs. Never wait if you have symptoms of a heart attackMany people are unsure whether they are having a heart attack and so they take a "wait and see" approach. Heart attack symptoms often vary. People often discount their symptoms if they do not fit into the expected "extreme chest pain" scenario. Some people are embarrassed or don't want to bother others by calling for help if they think it may not be a heart attack. Even if you're not sure it's a heart attack, you should still have it checked out. Rapid treatment can save your life. Who to SeeTo see whether you are at risk for heart disease, have symptoms of coronary artery disease, or require long-term care for existing heart disease, see your family doctor or internist. For diagnosis of coronary artery disease, you may see a cardiologist. For ongoing care of stable angina, you will likely see your family doctor or an internist. For surgical intervention, you will be referred to a cardiovascular surgeon.
Exams and TestsTo diagnose coronary artery disease (CAD), your health professional will complete a medical history and physical exam. Usually, the need for further testing depends on your risk factors and symptoms. Testing strategies also vary from doctor to doctor. If coronary artery disease is suspected, you may have tests to determine the diagnosis. The most common initial tests are electrocardiogram (EKG or ECG), chest X-ray, routine blood tests, and exercise electrocardiogram, also called a "stress test." Additional tests may include:5
Tests to measure risk for coronary artery diseaseBlood pressure measurements determine if you have high blood pressure. High blood pressure is a risk factor for coronary artery disease. Blood tests are often done to measure cholesterol levels. High cholesterol is also a risk factor for developing coronary artery disease. The U.S. Preventive Services Task Force recommends that people with high blood pressure or high cholesterol be routinely screened for diabetes. This recommendation is based on studies that show people with diabetes benefit more from intensive treatment of high blood pressure and high cholesterol than people who do not have diabetes.6 The first screening test for diabetes is usually a fasting blood sugar test. The American Heart Association and the Centers for Disease Control and Prevention (CDC) have released recommendations for C-reactive protein (CRP) blood testing. An increase in CRP levels is associated with inflammation in the blood vessels, atherosclerosis, and increased risk of coronary artery disease (CAD) and heart attack.7 The AHA/CDC panel recommends that CRP testing be done on some people who are at risk for developing coronary artery disease. If you have any CAD risk factors, ask your doctor whether CRP testing would be helpful in guiding your treatment.8 Elevated homocysteine levels and mutations of a specific gene (MTHFR) may also indicate an increased risk of coronary artery disease and heart attack, although more study is needed to fully understand their role in heart disease. Tests for these factors may be indicated for some people (for example, those who have had a heart attack at a young age or those with a strong family history of heart disease), but they are not recommended for the general population. Another test, the coronary artery calcium score, can help detect whether you have coronary artery disease and may predict whether you will develop symptoms. To calculate your score, a computed tomography (CT) scan is used to measure calcification, or plaque, in the coronary arteries, which supply blood to the heart. If you have a high coronary artery calcium score, you may need more tests to check to see if you have CAD or to find out how severe it is, especially if you have other risk factors for CAD. The coronary artery calcium score test is not recommended for routine screening, because it can show that you may have plaque in your coronary arteries even if you do not have CAD. Early detectionThe American Heart Association has released new guidelines for screening for coronary artery disease. Several expert groups worked with the American Heart Association in creating these guidelines, which may be different from those your doctor follows. Work with your doctor to determine which guidelines are appropriate for you. Beginning at age 20. Your doctor should assess your risk factors for heart disease during every routine examination. Risk factors include your family history of CAD, whether you smoke or are exposed to secondhand smoke, whether you eat a high saturated-fat diet, your alcohol intake, and your level of physical activity. During every routine examination—at least every 2 years—a health professional should check your blood pressure, body mass index, and pulse. Based on your risk of high cholesterol and diabetes, you should have a fasting lipoprotein analysis to measure your total and HDL cholesterol, and a fasting blood glucose test. If risk factors are present, these tests should be done every 2 years. If you don't have risk factors, these tests should be done every 5 years. At age 40 and over. Every 5 years, your 10-year risk of developing coronary artery disease should be assessed using a multiple risk factor score. This should be done more frequently if your risk factors change or if you have two or more risk factors. For example, a nonsmoking, nondiabetic 55-year-old man who has a total cholesterol level of 200 mg/dL, an HDL level of 35 mg/dL, and a systolic blood pressure of 135 mm Hg has a 10% risk of developing CAD over the next 10 years. However, a 40-year-old man with the same risk factors but who smokes has the same risk of CAD as the 55-year-old nonsmoker. Additionally, most doctors recommend that you be tested for coronary artery disease if you are one of the following:
Treatment OverviewTreatment for coronary artery disease (CAD) depends upon how far the disease has already progressed. Coronary artery disease is the buildup of plaque on the inside of the coronary arteries, the blood vessels that supply oxygen-rich blood to heart muscle. As you review your treatment options, consider the following:
Initial treatmentAfter you have been diagnosed with coronary artery disease, your doctor will strongly advise that you make lifestyle changes such as quitting smoking, following a heart-healthy diet, and exercising. With these measures, you may be able to halt the progression of the disease and improve the quality and length of your life. Quitting smoking may be the most important step you can take to reduce your risk. Avoid secondhand smoke too. In one study, people with CAD who continued to smoke had a 43% greater chance of sudden death from a heart attack than those who quit.9 Your doctor will strongly advise that you quit and will possibly prescribe medicine and therapy to help you do so. Studies show that nicotine replacement therapy, use of the medicines bupropion (Zyban or Wellbutrin) or varenicline (Chantix), and supportive therapy significantly increase long-term success in quitting.10 For more information, see the topic Quitting Tobacco Use. Aspirin is also recommended for almost everyone who has CAD to help reduce the risk of having a heart attack.11 The best dose of aspirin has not been established, but 75 mg a day seems to be as effective in preventing heart attack as higher doses and has fewer side effects.12 One low-dose aspirin contains 81 mg; one regular-strength aspirin contains about 325 mg. Talk with your doctor before starting aspirin therapy. If you have average to high cholesterol, a cholesterol-lowering medicine such as a statin may be prescribed. If you have angina, your doctor may prescribe medicines, including nitroglycerin and other nitrates which relax arteries and increase blood flow, and beta-blocker medicines, which decrease the heart's workload. Calcium channel blockers may be used to treat angina when beta-blockers are not tolerated or for other types of angina, including variant, or Prinzmetal's, angina. If these medicines do not relieve your chest pain, your doctor may prescribe a partial fatty acid oxidation inhibitor (ranolazine). An angiotensin-converting enzyme (ACE) inhibitor is often prescribed, particularly for those with diabetes or heart failure. Studies have shown that ACE inhibitors save lives and reduce the risk of heart attack in people with CAD.5 Your doctor will recommend that you start an exercise program, such as walking, swimming, cycling, or jogging, for at least 30 minutes on most, preferably all, days of the week. Studies show that exercise effectively reduces the number of fatal heart attacks in people with CAD.13 If you have metabolic syndrome, your doctor will probably recommend that you increase your physical activity and lose weight. Metabolic syndrome—which is characterized by excess body fat and other factors—increases your risk of coronary artery disease. Avoid getting sick from the flu. Get a flu shot every year. Factors that affect the choice of treatment in coronary artery disease include the severity of your chest pain, the results of your tests, and your preferences. Ongoing treatmentAfter your initial treatment, you will be monitored regularly by your doctor. He or she will want to know whether you have succeeded in making necessary lifestyle changes and whether those changes have been effective in controlling your risk factors for coronary artery disease. For example, your blood pressure, cholesterol, and weight will be checked to see whether more aggressive treatment is needed. If you are taking medicines, your doctor will ask you whether you have any side effects. You will be asked whether the medicines you take for angina decrease the pain quickly, and whether your angina is less frequent. You will probably have to continue the medicines you are taking, which may include a beta-blocker, angiotensin-converting enzyme (ACE) inhibitor, nitroglycerin, statins, and aspirin. These medicines reduce your risk of having a heart attack. Your doctor will assess how well these medicines are working and whether dosages need to be adjusted or alternative medications tried. If you have not been successful in making healthy lifestyle changes on your own, your doctor may recommend that you attend a cardiac rehabilitation program. Your cardiac rehab team, consisting of several health professionals, will assist you with a supervised program of aerobic and resistance training exercises, education and programs to reduce your risk factors for heart problems, stress management programs and counseling for depression, and nutritional counseling. If angina keeps you from exercising or enjoying other activities, you may want to talk to your doctor about having angioplasty to improve blood flow to your heart. You would also continue taking medicines and leading a healthy lifestyle. For more information, see: Treatment if the condition gets worseSometimes coronary artery disease continues to progress despite treatment. This may be caused by continued smoking or other unhealthy choices. Other times, symptoms get worse because the coronary artery disease has already progressed to an advanced state. If heart failure develops, your doctor will probably add an angiotensin-converting enzyme (ACE) inhibitor and a diuretic, which can prevent worsening of heart failure in addition to improving symptoms. If you begin to have abnormal heart rhythms (arrhythmias), your doctor might recommend a pacemaker or medicines to control your heart rate. Revascularization procedures that help restore blood flow to the heart may be recommended if you continue to have frequent or disabling chest pain despite the use of medicines, or you are found to have severe blockages in your coronary arteries. Revascularization procedures include angioplasty with or without stenting, and coronary artery bypass surgery (CABG). When deciding between bypass surgery or angioplasty, your doctor will evaluate:
What to Think AboutKeep the following questions in mind as you think about your treatment options for coronary artery disease.
Palliative care If your coronary artery disease gets worse, you may want to think about palliative care. Palliative care is a kind of care for people who have diseases that do not go away and often get worse over time. It is different from care to cure your illness, called curative treatment. Palliative care focuses on improving your quality of life—not just in your body, but also in your mind and spirit. Some people combine palliative care with curative care. Palliative care may help you manage symptoms or side effects from treatment. It can also help you cope with your feelings about living with a long-term disease, make future plans around your medical care, or help your family better understand your disease and how to support you. If you are interested in palliative care, talk to your doctor. He or she may be able to manage your care or refer you to a doctor who specializes in this type of care. For more information, see the topic Palliative Care. PreventionFrom 1993 to 2003, the death rate from coronary artery disease (CAD) declined by 22% in the United States.3 This decline is attributed to the steps people are taking to prevent coronary artery disease, including lowering blood pressure and cholesterol, changing diet and exercise habits, quitting smoking, and getting improved medical care. Coronary artery disease is caused by the buildup of plaque on the inside of the coronary arteries, the blood vessels that supply oxygen-rich blood to heart muscle. You too can take measures to delay the progression and even reverse coronary artery disease. Quitting smoking may be the most important step you can take to prevent coronary artery disease. According to the World Health Organization, after 1 year of not smoking, a person's risk of coronary artery disease decreases by 50%. After 15 years of not smoking, the risk of death due to coronary artery disease is equal to that of someone who has never smoked at all.3 Exercising regularly and eating a balanced diet that is low in saturated fats and rich in fruits and vegetables are also advised. Lifestyle changes
General dietary considerations
Specific dietary considerations
Lowering cholesterol If diet and exercise are not effective in lowering your cholesterol to a safe level, your doctor will probably prescribe a cholesterol-lowering drug. These medicines have been proven effective in treating high cholesterol, and now doctors are beginning to prescribe them for people with only mildly elevated cholesterol levels. In these people, cholesterol-lowering drugs combined with lifestyle changes may slow the development of atherosclerosis and may lower the risk of heart attack or death.14 Cholesterol-lowering medicines appear to be the best protection against heart attack in postmenopausal women with moderate to high cholesterol levels. In the HERS study, women who took cholesterol-lowering medicines had significantly lower rates of heart attacks and death from CAD than the women who did not take cholesterol-lowering medicines.17 Aspirin Aspirin may reduce the risk of stroke and heart attack in people with increased risk of coronary artery disease. Aspirin also is known to reduce the risk of developing blood clots, which can lead to a heart attack in people with known CAD or in people with multiple risk factors for CAD, such as diabetes, high blood pressure, and high cholesterol. There are some risks associated with aspirin therapy that you should discuss with your doctor before you begin this type of treatment. For more information, see: Managing other diseases or conditions Many diseases and conditions that increase your risk of developing CAD can be successfully managed with medicines and lifestyle changes. Strategies that are not recommended to prevent coronary artery disease
Ongoing ConcernsAfter being diagnosed with coronary artery disease (CAD), you will probably be most concerned about managing your symptoms and reducing the chance of heart attack, stroke, or other complications. Symptoms of coronary artery disease often begin when less blood flows to the heart muscle. Sometimes collateral circulation develops to provide another source of oxygen-rich blood to the deprived heart muscle. Collateral circulation is tiny branches of the artery that form to "bypass" the area of narrowing and help to restore blood flow. These blood vessels are often adequate unless the heart requires increased oxygen, such as during exercise or in stressful situations. During these times, you may have angina. Many people have stable angina, which is predictable and diminishes after they take nitroglycerin and get some rest. Although stable angina can be disturbing, it does not necessarily indicate heart muscle damage and can occur for years without harm. In some cases, CAD can cause life-threatening conditions. Newly formed plaques tend to be more unstable and are more likely to break open (rupture). If a plaque ruptures, a blood clot may form and suddenly block the blood flow to your heart muscle, causing a heart attack or unstable angina. Some people with CAD may have no symptoms, and the disease is only discovered during an electrocardiogram or stress test. Unfortunately, sometimes a heart attack is the first sign of coronary artery disease. According to the large, 50-year Framingham Heart Study, over 50% of men and 63% of women who died suddenly of coronary artery disease (mostly from heart attack) had no previous symptoms of this disease.3 Making healthy lifestyle changes and taking aspirin and other medicines, if needed to control your blood pressure and lower your cholesterol, are important measures you can take to reduce your chances of heart attack and stroke. If coronary artery disease progresses, you may develop additional problems. Over time, reduced blood flow may weaken your heart muscle so that it is not able to pump effectively. This may cause heart failure and abnormal heartbeats (arrhythmia). Atrial fibrillation is one of the most common arrhythmias associated with CAD. You are at increased risk of stroke if you have atrial fibrillation. For more information, see the topics Atrial Fibrillation and Stroke.
Atherosclerosis can affect other arteries of your
cardiovascular system and cause other complications throughout your body. See
an illustration of the
cardiovascular system If your CAD is severe or your symptoms cannot be controlled with medicines, you may need to consider the following surgery or procedures:
Living With CADA diagnosis of coronary artery disease (CAD) can be difficult to accept and understand. If you do not have symptoms, it may be especially hard to recognize that CAD is a serious disease that can lead to complications. Coronary artery disease is caused by the gradual buildup of plaque on the inside of the coronary arteries, the blood vessels that supply oxygen-rich blood to heart muscle. It is important to talk with your doctor to learn about the disease and what you can do to help manage CAD and prevent its progression. Making healthy lifestyle changes can delay and possibly reverse the course of CAD. Quitting smoking, eating a low-fat and low-cholesterol diet, and getting regular exercise are the most important steps you can take to reduce your risk of developing coronary artery disease.21 For more information, see: For more information on how to make healthy lifestyle changes, see the Prevention section of this topic. Avoid getting sick from the flu. Get a flu shot every year. Most people are able to control angina by taking medicines as prescribed and nitroglycerin when needed. See how to use nitroglycerin pills under the tongue. Remaining as active as possible is important for most people. But if angina is not controlled by the above, consider these tips:
When angina is more severe and cannot be controlled, the following tips may be useful:
Taking nitroglycerin before an activity may reduce or eliminate the chest pain associated with the activity. Discuss with your doctor the use of nitroglycerin to prevent chest pain. Do not use the erection-enhancing medicines sildenafil (Viagra), vardenafil (Levitra), or tadalafil (Cialis) if you are taking nitroglycerin or other nitrates. Combined, these two drugs can result in a life-threatening drop in blood pressure. If you are taking an erection-enhancing medicine and develop chest pain, be sure to alert the health professionals caring for you about your use of this medicine so that they do not inadvertently give you nitroglycerin or another type of nitrate. There are other oral antianginal medicines that may be appropriate. Alert your doctor immediately if there is a sudden change in your angina symptoms or if angina begins to occur unpredictably or when you are at rest.
MedicationsMany people have difficulty correctly taking their medicines for coronary artery disease (CAD). Often, they need to take several medicines at different times of the day. Also, for some people, the medicines are not affordable. But medicines are often an essential key to treatment, and people who do not take them as prescribed have an increased risk of complications and death.5 Medication ChoicesMedications to treat symptoms and prevent complicationsIf you have symptoms of coronary artery disease, the following medicines may be prescribed to control symptoms and, in some cases, slow its progression:
Anticoagulants may also be used following an angioplasty, atherectomy, or bypass surgery. The anticoagulant warfarin may be used if you have CAD as well as atrial fibrillation or other complications. What to Think AboutStable angina can often be controlled using medicine. If angina symptoms become worse, medicines can be adjusted. But angioplasty or bypass surgery may be necessary if angina symptoms get worse despite appropriate medication therapy. For angina that gets worse quickly or occurs at rest (unstable angina), hospitalization and urgent angioplasty, stenting, or bypass surgery may be needed. For more information, see the topic Heart Attack and Unstable Angina. Although nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen and naproxen, relieve pain and inflammation much like aspirin does, do not substitute NSAIDs for aspirin, because they will not decrease your risk of another heart attack. If you need to take NSAIDs for a long time, talk with your doctor to see if it is safe for you. Some research suggests that long-term use of these medicines may raise your risk for CAD. If you need both aspirin and a pain reliever every day, talk to your doctor about what pain reliever you should take. If you take uncoated aspirin and ibuprofen at the same time, the aspirin may not work as well to prevent a heart attack. You may be able to use acetaminophen instead of ibuprofen to treat your pain. But if ibuprofen is your only option, avoid taking it during the 8 hours before and the 30 minutes after your aspirin dose.22 For example, you can take ibuprofen 30 minutes after your aspirin dose. If you take ibuprofen once in a while, it does not seem to cause problems. Experts do not know if NSAIDs other than ibuprofen interfere with uncoated aspirin. Also, experts do not know if people who take a daily coated aspirin should be concerned about ibuprofen or other NSAIDs interacting with the aspirin. Talk to you doctor if you take these medicines every day.
SurgeryThe goals of surgery for coronary artery disease (CAD) are to:
Although many people with CAD can be treated with medicine or the nonsurgical procedure angioplasty, sometimes coronary artery bypass surgery (CABG) is needed. This surgery routes blood flow around narrowed or blocked arteries by creating detours using healthy blood vessels. Coronary artery bypass surgery is usually an open-heart procedure. Another type of surgery called transmyocardial laser revascularization (TMR) may be used along with CABG. TMR uses a laser beam to improve blood flow to heart muscle. TMR is not commonly used. In angioplasty and stenting—also called percutaneous coronary intervention—thin flexible tubes (catheters) are inserted through arteries to open blood vessels. For more information on these procedures, see the Other Treatment section of this topic. Surgery ChoicesCoronary artery bypass surgery (coronary artery bypass grafting, or CABG) increases blood flow to the heart muscle tissue by using healthy artery or vein grafts to bypass diseased sections of coronary arteries. In rare cases, transmyocardial laser revascularization (TMR) is used along with CABG surgery. TMR uses a laser beam to improve blood flow to heart muscle and may relieve chest pain. What to Think AboutYour choice of treatment depends on the number of blocked arteries you have and how badly they are blocked, the location of the blockage, as well as the specifics of your condition, your overall health, whether you have diabetes, and your personal preferences. In general, people with extensive CAD benefit more from bypass surgery than angioplasty.23
Understanding the advantages and disadvantages of each treatment is important in making the right decision. Consider:
Surgery is not the best option for everyone. Changing your lifestyle and taking medicine can be just as effective and may have less risk for some people. People who have heart surgery at hospitals that do a large number of heart surgeries tend to have better results than those who have surgery at hospitals that do fewer heart surgeries.
Other TreatmentSeveral nonsurgical procedures are used to treat coronary artery disease (CAD). They are called nonsurgical procedures because the repair is done through a catheter inserted into an artery, and neither a large incision nor general anesthesia is needed. Such procedures include:
Angioplasty (often combined with stenting) and atherectomy are used to reopen blocked or narrowed coronary arteries. Angioplasty is also known as percutaneous coronary intervention (PCI) or percutaneous transluminal coronary angioplasty (PTCA). Angioplasty has become a common procedure in large medical centers in the United States. The goal of this revascularization procedure is to increase blood flow to the heart muscle tissue. Angioplasty is less invasive and has a shorter recovery time than
bypass surgery, which requires open-heart surgery. Most of the time stents are
placed during this procedure. Studies show that angioplasty with stent
placement, compared to angioplasty alone, reduces the chance that the artery
will renarrow (restenosis) and possibly the risk of death.24 See a picture of
angioplasty with stenting Drug-eluting stents can almost completely prevent restenosis.25 These stents are coated with medicines that prevent the growth of cells around the stent, thereby keeping the artery open. But they are more expensive than conventional stents. And experts do not know yet how safe the drug-eluting stents are over the long term or how well they work over the long term. Whether you have angioplasty (with or without stenting) or bypass surgery depends on a number of factors, including the number of blocked arteries and how badly they are blocked, as well as other heart problems you have and your personal preferences. Understanding the advantages and disadvantages of each treatment is important in making the right decision. For more information, see: Atherectomy is done only in certain cases and only at large medical
centers. During atherectomy, plaque is shaved away from the inside of the
coronary arteries. Atherectomy may be needed because of the location, size, or
type of plaque or during angioplasty and stenting. See a picture of different
ways atherectomy What to Think AboutYou may be advised to participate in a cardiac rehabilitation (rehab) program to help you recover from complications of or treatment for coronary artery disease. After a heart attack, or after you have had surgery or angioplasty, a rehab program often helps improve your heart function and overall health. For more information, see the topic Cardiac Rehabilitation. End-of-Life DecisionsAlthough treatment for coronary artery disease (CAD) is increasingly successful at prolonging life and reducing complications and hospitalization, coronary artery disease can lead to a heart attack, stroke, and other fatal conditions. Many important end-of-life decisions can be made while you are active and able to communicate your wishes. When you are diagnosed with coronary artery disease, your doctor will discuss treatment options with you. If your coronary artery disease is advanced and your life will most likely be shortened by the illness, your doctor may talk to you about your desire to be revived (resuscitated) when your illness progresses and your breathing stops. You may want to learn more about aggressive life-sustaining medical treatment and whether it is right for you. For more information, see: Many other decisions about end-of-life issues, such as writing a living will and estate planning, can be made in advance, leaving valuable time for spending with loved ones and on other important matters. For more information, see the topics Care at the End of Life and Writing an Advance Directive. References
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