Coronary Heart Disease

Niacin too dangerous for routine cholesterol therapy

After 50 years of being a mainstay cholesterol therapy, niacin should no longer be prescribed for most patients due to potential increased risk of death, dangerous side effects and no benefit in reducing heart attacks and ...

Jul 16, 2014
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Keeping active pays off in your 70s and 80s

(Medical Xpress)—Older people who undertake at least 25 minutes of moderate or vigorous exercise everyday need fewer prescriptions and are less likely to be admitted to hospital in an emergency, new research ...

Jul 02, 2014
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Broken gene found to protect against heart disease

By scouring the DNA of thousands of patients, researchers at the Broad Institute, Massachusetts General Hospital, and their colleagues have discovered four rare gene mutations that not only lower the levels of triglycerides, ...

Jun 18, 2014
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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 licensed under CC BY-SA

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