News tagged with coronary artery

International study points to inflammation as a cause of plaque buildup in heart vessels

Fifteen new genetic regions associated with coronary artery disease have been identified by a large, international consortium of scientists—including researchers at the Stanford University School of Medicine—taking a ...

Genetics created Dec 02, 2012 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Study shows survival advantage for bypass surgery compared with non-surgical procedure

A new comparative effectiveness study found older adults with stable coronary heart disease (CHD) who underwent bypass surgery had better long-term survival rates than those who underwent a non-surgical procedure to improve ...

Cardiology created Mar 27, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Type 1 diabetes and heart disease linked by inflammatory protein

Type 1 (insulin-dependent) diabetes appears to increase the risk of heart disease, the leading cause of death among people with high blood sugar, partly by stimulating the production of calprotectin, a protein that sparks ...

Inflammatory disorders created May 07, 2013 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Stents disrupt blood flow

(Medical Xpress)—A researcher at ETH Zurich is designing a realistic artery model with an implanted stent and is using a computer to simulate the blood flow through the stent. In doing so he is uncovering ...

Cardiology created May 06, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Risk of depression influenced by quality of relationships, research says

The mantra that quality is more important than quantity is true when considering how social relationships influence depression, say U-M researchers in a new study.

Psychology & Psychiatry created Apr 30, 2013 | popularity 4.3 / 5 (4) | comments 0 | with audio podcast

Baldness linked to increased risk of coronary heart disease

Male pattern baldness is linked to an increased risk of coronary heart disease, but only if it's on the top/crown of the head, rather than at the front, finds an analysis of published evidence in the online journal BMJ Op ...

Cardiology created Apr 03, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Link between faster 'biological' aging and risk of developing age-related diseases

An international team of scientists led by the University of Leicester has found new evidence that links faster 'biological' ageing to the risk of developing several age-related diseases - including heart disease, multiple ...

Genetics created Mar 27, 2013 | popularity 4 / 5 (1) | comments 0 | with audio podcast

Chelation therapy may result in small reduction of risk of CV events

Although chelation therapy with the drug disodium EDTA has been used for many years with limited evidence of efficacy for the treatment of coronary disease, a randomized trial that included patients with a prior heart attack ...

Cardiology created Mar 26, 2013 | popularity not rated yet | comments 0 | with audio podcast

Novel anti-clotting drug more effective than Plavix in coronary procedures, study says

(Medical Xpress)—An experimental drug has been shown to be significantly more effective at preventing blood clots during coronary stenting procedures compared to the anti-clotting agent now typically used, according to ...

Cardiology created Mar 11, 2013 | popularity not rated yet | comments 0 | with audio podcast

New drug inclacumab reduces heart damage

A single dose of an investigational anti-inflammatory drug called inclacumab considerably reduces damage to heart muscle during angioplasty (the opening of a blocked artery), according to a recent international clinical trial ...

Cardiology created Mar 10, 2013 | popularity not rated yet | comments 0 | with audio podcast

Scientists identify new therapeutic target for coronary heart disease

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 created Feb 14, 2013 | popularity 4 / 5 (1) | comments 0 | with audio podcast

Chest pain prior to a heart attack can protect the heart

Patients who experience chest pain in the 24 hours preceding a heart attack, also called preinfarction angina, have smaller heart attacks and improved cardiac function in the contemporary cardiac stenting era, researchers ...

Cardiology created Feb 05, 2013 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Binge drinking increases risk of Type 2 diabetes by causing insulin resistance

Binge drinking causes insulin resistance, which increases the risk of Type 2 diabetes, according to the results of an animal study led by researchers at the Diabetes Obesity and Metabolism Institute at the Icahn School of ...

Diabetes created Jan 30, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Study examines overuse of ambulatory health care services in US

An analysis of nationally representative survey data found significant improvement in the delivery of underused care, but more limited changes in the reduction of inappropriate care in ambulatory health care settings between ...

Health created Dec 24, 2012 | popularity not rated yet | comments 0 | with audio podcast

Rebuilding blood vessels through gene therapy

(Medical Xpress)—Diagnosed with severe coronary artery disease, a group of patients too ill for or not responding to other treatment options decided to take part in a clinical trial testing angiogenic gene therapy to help ...

Cardiology created Dec 21, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

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.

For more information about Coronary circulation, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.