News tagged with coronary artery

Related topics: coronary artery disease · heart attack · patients · heart disease · heart

Working nights is bad for the heart

Working at night is unhealthy for the heart and increases the risk of sustaining coronary heart disease, meaning a disease of the coronary arteries. This is the result of a current, and one of the largest American cooperation ...

Apr 27, 2016
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Genetic vitamin K1 levels linked to heart disease

(HealthDay)—Genetically determined vitamin K1 is associated with coronary artery disease (CAD) and myocardial infarction (MI), according to a study published online April 8 in the Journal of Thrombosis and Haemostasis.

Apr 18, 2016
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New clues in the quest to prevent clogged arteries

For many people, coronary artery disease (CAD) – the buildup of plaque in the heart's arteries – is an unfortunate part of aging. By studying the genetic makeup of people who maintain clear arteries into old age, researchers ...

Apr 06, 2016
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Coronary circulation

Coronary circulation is the circulation of blood in the blood vessels of the heart muscle. Although blood fills the chambers of the heart, the muscle tissue of the heart (the myocardium) is so thick that it requires coronary blood vessels to deliver blood deep into it. The vessels that deliver oxygen-rich blood to the myocardium are known as coronary arteries. The vessels that remove the deoxygenated blood from the heart muscle are known as coronary veins.

The coronary arteries that run on the surface of the heart are called epicardial coronary arteries. These arteries, when healthy, are capable of autoregulation to maintain coronary blood flow at levels appropriate to the needs of the heart muscle. These relatively narrow vessels are commonly affected by atherosclerosis and can become blocked, causing angina or a heart attack. (See also: circulatory system.) The coronary arteries that run deep within the myocardium are referred to as subendocardial.

The coronary arteries are classified as "end circulation", since they represent the only source of blood supply to the myocardium: there is very little redundant blood supply, which is why blockage of these vessels can be so critical.

This text uses material from Wikipedia, licensed under CC BY-SA

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