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Treating A Heart Attack

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What is Heart Disease

There are many types of heart disease. About 25% of all Americans have one or more types of cardiovascular disease.

The major types of heart disease are atherosclerosis, coronary, rheumatic, congenital, myocarditis, angina and arrhythmia.

Heart disease can arise from congenital defects, infection, narrowing of the coronary arteries, high blood pressure, or disturbances.

The first stages of heart disease are lesions and cracks forming in the blood vessel walls normally at the points of highest pressure or stress (near the heart). The second stage is the body trying to repair itself by depositing fatty substances (cholesterol, lipoproteins) inside the blood vessels to fill the cracks.

Over time, without the proper body nutrient, vitamin C, to help keep the blood vessel walls from cracking and requiring constant repair, these fatty substances can begin to build up and clog the blood vessels causing stroke and heart attack

A heart attack is also called a myocardial infarction or an MI. Myocardial refers to the myocardium, the heart muscle. Infarction is tissue death due to a local lack of oxygen

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Myocardial Infarction - Heart Failure

A heart attack (also known as a myocardial infarction) is the death of heart muscle from the sudden blockage of a coronary artery by a blood clot. Coronary arteries are blood vessels that supply the heart muscle with blood and oxygen.

Blockage of a coronary artery deprives the heart muscle of blood and oxygen,causing injury to the heart muscle. Injury to the heart muscle causes chest painand pressure.

If blood flow is not restored within 20 to 40 minutes,irreversible death of the heart muscle will begin to occur. Muscle then continues to die for 6-8 hours at which time the heart attack usually is "complete." The dead heart muscle is replaced by scar tissue.

What Causes a Heart Attack?

The most common cause of heart attack is the sudden blockage of one of the heart's arteries by a blood clot. These clots typically form in arteries that are already affected by atherosclerosis - that is, the arteries are narrowed by fatty deposits of plaque and other materials.

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What causes heart failure?

Following are some common causes of heart failure.

Coronary artery disease - Heart failure is closely associated with the major risk factors for coronary heart disease: smoking, high cholesterol levels, persistent high blood pressure, diabetic abnormal blood sugar levels and obesity. A single risk factor may be sufficient to cause heart failure, but a combination of factors dramatically increases the risk.

High blood pressure - Uncontrolled high blood pressure increases the risk of heart failure by 200 percent, compared with people who don't have hypertension. The degree of risk appears directly related to how severe the high blood pressure is.

Diabetes - People with diabetes have a two to eight times greater risk of heart failure compared to those without diabetes. Women with the condition have a greater risk of heart failure than men with diabetes. Part of the risk comes from the disease's association with other heart failure risk factors, such as high blood pressure, obesity, and high cholesterol levels. The disease process also damages the heart muscle.

Heart valve problems - Some people are born with or develop problems with these flap-like structures that help regulate blood flow through the heart.

Heart attack damage - A heart attack can leave the heart muscle damaged and this, in turn, can cause heart failure.
Genetic abnormalities - People can be born with valve problems, other birth defects, or diseases called cardiomyopathies that can cause damage to the heart muscle and resulting heart failure. With cardiomyopathy, the heart loses its ability to pump blood. Usually, the exact cause of the muscle damage is never found.



Heart Disease Prevention and Cure

Some forms of heart disease can be prevented.

To prevent coronary heart disease, one must exercise consistently, have a low salt and low fat diet, restrain from smoking and lose a couple of pounds if overweight.

Healthy diets also help prevent heart disease

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Treating a Heart Attack - CPR and others

Early heart attack deaths can be avoided if a bystander starts CPR (cardiopulmonary resuscitation) within five minutes of the onset of ventricular fibrillation. CPR involves breathing for the victim and applying external chest compression to make the heart pump.

When paramedics arrive, medications and/or electrical shock (cardioversion) to the heart can be administered to convert ventricular fibrillation to a normal heart rhythm. Therefore, prompt CPR and rapid paramedic response can improve the survival chances from a heart attack.

The treatment of a heart attack may include the prompt administration of drugs to dissolve and prevent blood clots; an angioplasty or intracoronary stenting to open an obstructed artery; and medications that open (dilate) blood vessels.

Early reopening of a blocked coronary artery reduces the amount of heart muscle damage, lessens the size of the heart attack, and improves prognosis. Patients suffering a heart attack are usually hospitalized for several days to detect heart rhythm disturbance, and observe for shortness of breath and chest pain.

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