![](/rp/kFAqShRrnkQMbH6NYLBYoJ3lq9s.png)
What Is Coronary Heart Disease? - NHLBI, NIH
2024年12月23日 · Coronary heart disease affects the larger coronary arteries on the surface of the heart. It is caused by deposits of cholesterol , a waxy substance that builds up inside the lining of the coronary arteries, forming plaque . This plaque can partly or completely block blood flow in the arteries of the heart:
How the Heart Works - How Blood Flows through the Heart
2022年3月24日 · Some conditions can affect normal blood flow through these heart arteries. Examples include: Angina; Heart attack; Coronary heart disease; The coronary veins return oxygen-low blood from the heart's muscles back to the right atrium so it can be pumped to the lungs. They include: The anterior cardiac veins; The great cardiac vein; The middle ...
Coronary Heart Disease - Causes and Prevention | NHLBI, NIH
2024年12月27日 · Plaque buildup in the large arteries on the heart’s surface is the leading cause of coronary heart disease. Some people may have coronary heart disease if the blood vessels in their heart do not respond correctly when the heart needs more oxygen-rich blood. Plaque buildup . Plaque buildup in the arteries is called atherosclerosis.
Coronary Heart Disease - Diagnosis - NHLBI, NIH
2024年12月23日 · Coronary CT angiography is an imaging test that looks at blood flow through the coronary arteries using a special X-ray machine that takes multiple pictures of the heart. Invasive coronary angiography uses contrast dye to detect blockages in the coronary arteries. Your provider will inject the dye into your coronary arteries using cardiac ...
Coronary Heart Disease - Treatment - NHLBI, NIH
2024年12月27日 · Coronary artery bypass grafting (CABG) improves blood flow to the heart by using healthy arteries from the chest wall and veins from the legs to bypass the blocked arteries. Surgeons typically use CABG to treat people who have severe coronary artery disease in multiple coronary arteries.
Atherosclerosis - What Is Atherosclerosis? | NHLBI, NIH
2024年10月28日 · Coronary artery disease (CAD) is plaque buildup in the arteries of your heart. Peripheral artery disease (PAD) most often is plaque buildup in the arteries of the legs, but it can also build up in your arms or pelvis. Renal artery stenosis is plaque buildup in the arteries that supply blood to your kidneys.
Heart Attack - Causes and Risk Factors - NHLBI, NIH
2022年3月24日 · The most common cause of a heart attack is coronary artery disease, which is the most common type of heart disease. This is when your coronary arteries cannot carry enough oxygen-rich blood to your heart muscle. Most of the time, coronary artery disease happens when a waxy substance called plaque builds up inside your arteries, causing the ...
What Are Stents? - NHLBI, NIH
2023年11月30日 · Coronary or carotid artery stents. Some stents are made specifically for the coronary or carotid arteries. Bare metal stents are simple metal mesh tubes that can be used in both the coronary and carotid arteries. Drug-eluting stents are the most common type of stents used in the coronary arteries. Usually, these stents have a metal mesh ...
What Is Coronary Artery Bypass Grafting? - NHLBI, NIH
2022年3月24日 · Coronary artery bypass grafting (CABG), also called heart bypass surgery, is a medical procedure to improve blood flow to the heart. It may be needed when the arteries supplying blood to the heart, called coronary arteries, are narrowed or blocked.
Atherosclerosis - Treatment - NHLBI, NIH
2024年10月28日 · Bypass grafting can also treat arteries in other parts of the body, such as the arteries leading to the intestines. Transmyocardial laser revascularization or coronary endarterectomy treats severe angina associated with coronary heart disease when other treatments are too risky or do not work. Carotid endarterectomy treats carotid artery disease.