What Is Heart Disease? Bring up heart disease, and most people think of a heart attack. But there are many conditions that can undermine the heart's ability.

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Presentation transcript:

What Is Heart Disease? Bring up heart disease, and most people think of a heart attack. But there are many conditions that can undermine the heart's ability to do its job. These include coronary artery disease, cardiomyopathy, arrhythmia, and heart failure. Keep reading to find out what these disorders do to the body and how to recognize the warning signs

What Is a Heart Attack? Every year, more than 1 million Americans have a heart attack – a sudden interruption in the heart's blood supply. This happens when there is a blockage in the coronary arteries, the vessels that carry blood to the heart muscle. When blood flow is blocked, heart muscle can be damaged very quickly and die. Prompt emergency treatments have reduced the number of deaths from heart attacks in recent years.

Heart Attack Symptoms A heart attack is an emergency even when symptoms are mild. Warning signs include : Pain or pressure in the chest. Discomfort spreading to the back, jaw, throat, or arm. Nausea, indigestion, or heartburn. Weakness, anxiety, or shortness of breath. Rapid or irregular heartbeats.

Signs of Coronary Artery Disease A precursor to a heart attack, coronary artery disease or CAD occurs when sticky plaque builds up inside the coronary arteries. This narrows the arteries, making it more difficult for blood to flow through. Many people don't know they have CAD until a heart attack strikes. But there are warning signs, such as recurring chest pain caused by the restricted blood flow. This pain is known as angina.

Inside a Heart Attack The plaque deposited in your arteries is hard on the outside and soft and mushy on the inside. Sometimes the hard outer shell cracks. When this happens, a blood clot forms around the plaque. If the clot completely blocks the artery, it cuts off the blood supply to a portion of the heart. Without immediate treatment, that part of the heart muscle could be damaged or destroyed.

Arrhythmia: Erratic Heart Beat Regular electrical impulses cause your heart to beat. But sometimes those impulses become erratic. The heart may race, slow down, or quiver. Arrhythmias are often harmless variations in rhythm that pass quickly. But some types make your heart less effective at pumping blood, and that can take a serious toll on the body. Let your doctor know if you've noticed your heart beating abnormally.

Cardiomyopathy Cardiomyopathy is a disease involving changes in the heart muscle. These changes may interfere with the heart’s ability to pump effectively, which can lead to a chronic condition called heart failure. Cardiomyopathy is sometimes associated with other chronic conditions, such as high blood pressure or heart valve disease.

Heart Failure Heart failure doesn't mean your heart stops working. It means the heart can't pump enough blood to meet the body's needs. Over time, the heart gets bigger to hold more blood, it pumps faster to increase the amount of blood moving out of it, and the blood vessels narrow. The heart muscle may also weaken, reducing the blood supply even more. Most cases of heart failure are the result of coronary artery disease and heart attacks. Heart Failure Heart failure doesn't mean your heart stops working. It means the heart can't pump enough blood to meet the body's needs. Over time, the heart gets bigger to hold more blood, it pumps faster to increase the amount of blood moving out of it, and the blood vessels narrow. The heart muscle may also weaken, reducing the blood supply even more. Most cases of heart failure are the result of coronary artery disease and heart attacks.

Testing: Echocardiogram An echocardiogram uses sound waves (ultrasound) to generate moving images of the heart. The test can assess the chambers and valves of your heart and how well your heart muscle and heart valves are working. It's useful in diagnosing and evaluating several types of heart disease, as well as evaluating the effectiveness of treatments.

Testing: Cardiac CT Cardiac computerized tomography (known as cardiac CT) takes detailed images of the heart and its blood vessels. A computer stacks the images to create a 3-D picture of heart. A cardiac CT can be used to look for plaque or calcium buildup in the coronary arteries, heart valve problems, and other types of heart disease.

Testing: Cardiac Catheterization Cardiac catheterization helps diagnose and treat some heart conditions. The doctor guides a narrow tube, called a catheter, through a blood vessel in your arm or leg until it reaches the coronary arteries. Dye is injected into each coronary artery, making them easy to see with an X-ray. This reveals the extent and severity of any blockages. Treatments such as angioplasty or stenting can be done during this procedure.

Living With Heart Disease Most forms of heart disease are chronic. In the beginning, symptoms may be too mild to affect everyday life. And in many cases, long-term treatment can keep symptoms under control. But if the heart begins to fail, patients may develop shortness of breath, fatigue, or swelling in ankles, feet, legs, and abdomen. Heart failure can be managed with medication, lifestyle changes, surgery, and in certain cases, a heart transplant.

Treatment: Angioplasty Angioplasty is used to open a blocked heart artery and improve blood flow to the heart. The doctor inserts a thin catheter with a balloon on the end into the artery. When the balloon reaches the blockage, it is expanded, opening up the artery and improving blood flow. The doctor may also insert a small mesh tube, called a stent, to help keep the artery open after angioplasty.

Smoking and Your Heart If you smoke, your risk of heart disease is 2 to 4 times greater than a nonsmoker's. And if you smoke around loved ones, you're increasing their risk with secondhand smoke. Each year in the U.S., more than 135,000 people die from smoking-related heart disease. But it's never too late to quit. Within 24 hours of quitting, your heart attack risk begins to fall.

Heart Disease Prevention The key to preventing heart disease is a healthy lifestyle. This includes a nutritious diet, at least 30 minutes of exercise most days of the week, not smoking, and controlling high blood pressure, cholesterol, and diabetes. If you drink alcohol, do so in moderation – no more than one drink a day for women, two drinks a day for men. Ask your friends and family for help in making these changes. They'll benefit, too.

Diet and Your Heart What you eat makes a difference. Be sure you get plenty of whole grains, vegetables, legumes, and fruits to help keep your heart healthy. Plant oils, walnuts, other nuts, and seeds can also help improve cholesterol levels. And don't forget to eat fish at least a couple of times each week for a good source of heart-healthy protein.