A novel device called venous external support (VEST) may lead to increased longevity and durability of saphenous (leg) vein grafting during coronary artery bypass surgery, according to a new trial done in collaboration with ...
Nov 13, 2021
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It might seem that a steady regimen of rest and relaxation is the best course of action for someone with heart disease, but staying active is essential for the heart and overall health. Elijah Behr, M.D., a cardiologist at ...
Nov 11, 2021
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Researchers at Emory University School of Medicine recently performed a cardiac imaging procedure that was the first of its kind completed in Georgia.
Nov 11, 2021
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he primary results of the Fractional Flow Reserve Versus Angiography for Multivessel Evaluation (FAME) 3 trial found that percutaneous coronary intervention (PCI) guided by fractional flow reserve (FFR) did not meet noninferiority ...
Nov 08, 2021
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Therapeutics that target lipids called ceramides might hold potential for treating cardiometabolic disease, argues a review article published November 5th in the journal Trends in Pharmacological Sciences. The authors summarize ...
Nov 05, 2021
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Use of a novel technique called the quantitative flow ratio (QFR) to precisely identify and measure the severity of artery blockages can lead to significantly improved outcomes after percutaneous coronary intervention (PCI), ...
Nov 04, 2021
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A recent study published in Circulation: Genomic and Precision Medicine found that using genetic information to prescribe medications following a stent's being placed after a heart attack reduces the risk of fatal outcomes ...
Nov 04, 2021
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In a new publication from Cardiovascular Innovations and Applications, Xiaofan Peng, Yichao Xiao Yanan Guo and colleagues from Central South University, Changsha, Hunan, China consider the clinical significance of angiographically ...
Oct 27, 2021
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Experts in sex as a biological variable are uncovering the role of estrogen in exercise. The researchers will present their findings virtually at the American Physiological Society's (APS) New Trends in Sex and Gender Medicine ...
Oct 20, 2021
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The existence of age, race and sex disparities in healthcare delivery within the United States is well established, with prior studies identifying inequitable treatment in common cardiovascular diseases such as hypertension, ...
Oct 06, 2021
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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.
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