News tagged with coronary artery
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
May 07, 2013 |
4.5 / 5 (2) |
0
|
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
May 06, 2013 |
5 / 5 (4) |
0
|
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
Apr 30, 2013 |
4.2 / 5 (5) |
0
|
Cardiac study used as source for new guidelines on treating people undergoing coronary artery bypass surgery
Cardiac research from the University of Alberta had serious impact as a source for the American College of Cardiology and the American Heart Association's new guidelines on how to treat patients undergoing coronary artery ...
Cardiology
5 hours ago |
not rated yet |
0
Dual-source cardiac CT IDs CAD in hard-to-image patients
(HealthDay)—In patients who have previously been considered difficult to image, dual-source cardiac (DSC) computed tomography (CT) can identify clinically significant coronary artery disease, according ...
Cardiology
19 hours ago |
not rated yet |
0
Atherosclerotic disease heredity mapped in nationwide study
Researchers at Lund University in Sweden have mapped the significance of heredity for common forms of atherosclerotic disease. No studies have previously examined whether different forms of the disease share heredity.
Cardiology
May 20, 2013 |
not rated yet |
0
Long-term outcomes in patients with advanced coronary artery disease are better than expected
Death rates associated with patients with refractory angina, or chronic chest pain, are lower than previously considered; therefore, physicians should focus on relieving the chest pain symptoms and improving the quality of ...
Cardiology
May 15, 2013 |
not rated yet |
0
Job stress, unhealthy lifestyle increase risk of coronary artery disease
People with job stress and an unhealthy lifestyle are at higher risk of coronary artery disease than people who have job stress but lead healthy lifestyles, found a study published in CMAJ (Canadian Medical Association Journal). ...
Cardiology
May 13, 2013 |
not rated yet |
0
Estrogen levels tied to risk for sudden cardiac death in study
(HealthDay)—Higher levels of the hormone estrogen are associated with an increased risk of sudden cardiac death in men and women, a new study suggests.
Cardiology
May 11, 2013 |
4.5 / 5 (2) |
0
Increased risk of heart attack and death with progressive coronary artery calcium buildup
Patients with increasing accumulations of coronary artery calcium were more than six times more likely to suffer from a heart attack or die from heart disease than patients who didn't have increasing accumulations, according ...
Cardiology
May 02, 2013 |
not rated yet |
0
Antidepressants may hasten bypass recovery, study finds
(HealthDay)—Depression is relatively common in patients who undergo heart bypass surgery, and a new study finds that short-term use of antidepressants may aid patients' recovery.
Surgery
May 01, 2013 |
not rated yet |
0
Diagnostic coronary angiography: Functional flow reserve changes decisions in 25 percent of cases
Routinely measuring fractional flow reserve (FFR) using pressure wire assessment during coronary angiography for diagnosis of chest pain leads to significant changes in the management of one in four patients, according to ...
Cardiology
4 hours ago |
not rated yet |
0
Biodegradable stent proves non-inferior to drug-eluting stent
The Orsiro stent, which is a novel stent platform eluting sirolimus from a biodegradable polymer, demonstrated non-inferiority to the Xience Prime everolimus-eluting stent for the primary angiographic endpoint of in-stent ...
Cardiology
May 21, 2013 |
5 / 5 (1) |
0
Stress test may help predict increased mortality risk in sleep apnea patients
Many studies have shown that men and women who suffer from obstructive sleep apnea (OSA) - a disorder that causes breathing to halt intermittently during sleep – have a higher mortality rate than those who do not have the ...
Sleep apnea
May 20, 2013 |
not rated yet |
0
When less is more: New protocol limits use of SPECT MPI
A new stress test protocol that investigates reducing the use of perfusion imaging in low risk patients undergoing SPECT myocardial perfusion imaging for possible angina symptoms was found to be diagnostically safe, revealed ...
Cardiology
May 05, 2013 |
not rated yet |
0
- Pages: 1
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.
