What Is Coronary Heart Disease? - NHLBI, NIH
2023年12月20日 · The cause of coronary heart disease depends on the type. Coronary artery disease is often caused by cholesterol, a waxy substance that builds up inside the lining of the coronary arteries, forming plaque. This plaque buildup can partially or totally block blood flow in the large arteries of the heart. Coronary microvascular disease occurs when ...
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 Risk Factors - NHLBI, NIH
2023年12月20日 · Damage to the inner walls of the larger coronary arteries can cause them to spasm (suddenly tighten). This is called vasospasm — the spasm causes the arteries to narrow temporarily and blocks blood flow to the heart. Coronary microvascular disease in small arteries and obstructive coronary artery disease in large arteries.
Coronary Heart Disease - Diagnosis - NHLBI, NIH
2023年12月20日 · A coronary calcium scan measures the amount of calcium in the walls of your coronary arteries. This test is a type of cardiac computed tomography (CT) scan. Coronary calcium scans can also help assess coronary heart disease risk for people who smoke or who do not have heart disease symptoms.
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.
Stents - 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 ...
The most common type of heart disease is coronary heart disease. In fact, when people talk about “heart disease” they often mean coronary heart disease. Nearly 650,000 Americans die from heart diseases each year. About 11% of American adults (that’s more than 1 of every 9) have been diagnosed with heart disease. Coronary Heart Disease
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 artery 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 ...
Coronary Artery Bypass Grafting - Who Needs It? - NHLBI, NIH
2024年8月28日 · Coronary artery bypass grafting (CABG) is used to treat obstructive coronary heart disease, a type of heart disease that occurs when plaque builds up in the coronary arteries that supply the heart with oxygen-rich blood. Your heart care team will work with you to decide if CABG is right for you.
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.