Women are at higher risk of death when undergoing heart bypass surgery than men. Researchers at Weill Cornell Medicine have determined that this disparity is mediated, to a large extent, by intraoperative anemia—the loss ...
Apr 11, 2024
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A new study shows that a non-invasive imaging test can help identify patients with coronary artery blockage or narrowing who need a revascularization procedure. The findings were published as a Special Report in Radiology: ...
Apr 11, 2024
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Coronary artery disease and major depression may be genetically linked via inflammatory pathways to an increased risk for cardiomyopathy, a degenerative heart muscle disease, researchers at Vanderbilt University Medical Center ...
Apr 8, 2024
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People with a buildup of fatty atherosclerotic plaque in the heart's arteries considered at risk of rupturing were far less likely to suffer a serious cardiac event if they underwent percutaneous coronary intervention (PCI), ...
Apr 8, 2024
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Implantation of the Impella CP micro-axial flow pump in the hours after a heart attack significantly increased the rate of survival at six months among people suffering cardiogenic shock, according to a study presented at ...
Apr 8, 2024
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One of the first studies to attempt to treat early-stage heart failure in patients with Type 2 diabetes did not meet its primary endpoint, but a preplanned subgroup analysis found a statistically significant effect of treatment ...
Apr 8, 2024
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Administering tranexamic acid (TxA), a drug used to reduce bleeding during heart surgery topically rather than intravenously did not meet its primary endpoint of reducing seizures and was stopped early due to an increased ...
Apr 8, 2024
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For heart attack patients, treating only the coronary artery that caused the infarction works just as well as preventive balloon dilation of the other coronary arteries, according to a new large study by researchers at Karolinska ...
Apr 8, 2024
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A new approach to the guidance, planning and conduct of heart bypass surgery has been successfully tested on patients for the first time in a clinical trial coordinated by a research team at University of Galway.
Apr 8, 2024
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Exposure to secondhand smoke—even at small amounts—is linked with greater risk of a serious heart rhythm disorder, according to research presented at EHRA 2024, a scientific congress of the European Society of Cardiology ...
Apr 7, 2024
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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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