Coronary Heart Disease
Can a simple diagnostic test used to measure a heart's electrical activity help predict heart attacks? And can that knowledge help doctors reroute their patients away from coronary heart disease?
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Cardiology May 21, 2013 | 4 / 5 (1) | 0 |
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Cardiology May 14, 2013 | not rated yet | 0 |
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Scientists investigating how certain genes affect an individual's risk of developing coronary heart disease have identified a new therapeutic target, according to research published today in The American Journal of Human Ge ...
Cardiology Feb 14, 2013 | 4 / 5 (1) | 0 |
Dietary advice about fats and the risk of heart disease is called into question in BMJ today as a clinical trial shows that replacing saturated animal fats with omega-6 polyunsaturated vegetable fats is linked to an increa ...
Cardiology Feb 05, 2013 | 5 / 5 (1) | 1 |
Coronary heart disease is the narrowing or blockage of the coronary arteries, usually caused by atherosclerosis. Atherosclerosis (sometimes called “hardening” or “clogging” of the arteries) is the buildup of cholesterol and fatty deposits (called plaques) on the inner walls of the arteries. These plaques can restrict blood flow to the heart muscle by physically clogging the artery or by causing abnormal artery tone and function.
Without an adequate blood supply, the heart becomes starved of oxygen and the vital nutrients it needs to work properly. This can cause chest pain called angina. If blood supply to a portion of the heart muscle is cut off entirely, or if the energy demands of the heart become much greater than its blood supply, a heart attack (injury to the heart muscle) may occur.
It is most commonly equated with atherosclerotic coronary artery disease, but coronary disease can be due to other causes, such as coronary vasospasm. It is possible for the stenosis to be caused by spasm.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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