Sudden cardiac death (sudden arrest) is death resulting from an sudden loss of heart function (cardiac arrest). The victim may or may not have diagnosed heart disease. The time and mode of death are unexpected. It occurs within moments after symptoms appear. The most common reason for patients to die suddenly from cardiac arrest is coronary heart disease (fatty buildups in the arteries that supply blood to the heart muscle).

All known heart diseases can lead to cardiac arrest or sudden cardiac death. Most of the cardiac arrests that lead to sudden death occur when the electrical impulses in the diseased heart become rapid (ventricular tachycardia), chaotic (ventricular fibrillation) or both. This irregular heart rhythm (arrhythmia) causes the heart to suddenly stop beating. Some cardiac arrests are due to extreme slowing of the heart. This is called bradycardia. Bradycardia is common in premature infants.

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What is peripheral vascular disease?

Peripheral artery disease (PAD) is a heart condition similar to that of coronary artery disease and carotid artery disease. In PAD, the fatty deposits build up in the inner linings of the artery walls. These blockages restrict the blood flow circulation, mainly in arteries leading to the kidneys, stomach, arms, legs and feet.

In its early stages, a common symptom is cramping, or fatigue in the legs and buttocks during activity. Such cramping subsides when the person stands still. This is called “intermittent claudication.” People with PAD often have fatty buildup in the arteries of the heart and brain. Because of this association, most people with PAD have a higher risk of death from heart attack and stroke.

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High blood pressure is a major risk factor for coronary heart disease, stroke, heart failure, peripheral vascular disease and renal failure. High blood pressure is more likely to develop among people who are overweight or physically inactive, or have high dietary salt intakes. Hypertension is one of the most frequently managed problems in general practice worldwide.

The heart pumps blood around the body through the blood vessels. Blood pressure is the amount of force exerted on the artery walls by the pumping blood. High blood pressure (hypertension) means the blood is pumping with more force than normal through arteries. This added stress upon the arteries could possibly accelerate the distribution of arteries with fatty plaques (atherosclerosis).

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Heart Disease is one of the world’s largest health problems today. It not only affects the wealthier nations it is also affecting the poorer ones. Heart Disease covers a wide range of health ailments relating specifically to the heart.

There are many theories and ideas that relate to heart disease. One school of thought for the sudden increase in heart disease is the changes within different lifestyles. People are often less active and eat diets high in fats. Takeaway food is abundant today and often people will eat it due to the increased availability. Some takeaway outlets are now helping cater to a healthier lifestyle by offering a variety of healthy dishes such as salads. People are becoming more aware of the risk of heart disease and choosing to change their diets.

Why exercise? Exercise is extremely important in order to avoid heart disease. Exercise helps to keep the heart at its peak performance and is optimum health is easier to maintain. By using a combination of exercise and a balanced diet, the risk of heart disease is greatly decreased.

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Myocardial infarction (MI) means that part of the heart muscle suddenly loses its blood supply. Without immediate treatment, this can lead to damage to the affected part of the heart. An MI is often called a heart attack or a coronary thrombosis.

The heart pumps blood into arteries (blood vessels) which take the blood to every part of the body. The heart muscle, like all muscles, always needs a good blood supply. The coronary arteries take blood to the heart muscle. The main coronary arteries branch off from the aorta. (The aorta. is the large artery that takes oxygen-rich blood from the heart chambers to the body.) The main coronary arteries divide into smaller branches then take blood to all parts of the heart muscle.

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