Coronary artery disease - Symptoms and causes - Mayo Clinic
2024年6月14日 · Coronary artery disease, also called CAD, is a condition that affects your heart. It is the most common heart disease in the United States. CAD happens when coronary arteries struggle to supply the heart with enough blood, oxygen and nutrients. Cholesterol deposits, or plaques, are almost always to blame.
Coronary artery disease - Diagnosis and treatment - Mayo Clinic
2024年6月14日 · The lifestyle habits used to treat coronary artery disease also can help prevent it. A healthy lifestyle can help keep the arteries strong and clear of blockages. To improve heart health, follow these tips: Do not smoke or use tobacco. Limit or do not drink alcohol. Control blood pressure, cholesterol and diabetes. Exercise and stay active.
How the Heart Works - How Blood Flows through the Heart
2022年3月24日 · Your coronary arteries supply blood to your heart. These arteries branch off from the aorta so that oxygen-rich blood is delivered to your heart as well as the rest of your body. The left coronary artery delivers blood to the left side of your heart, including your left atrium and ventricle and the septum between the ventricles.
CT coronary angiogram - Mayo Clinic
2024年6月11日 · Before a CT coronary angiogram, a healthcare professional may give you medicine called a beta blocker. This slows your heart rate to help the CT scanner make clearer images. Let your healthcare professional know if you've had side effects from beta blockers in the past. You also may be given nitroglycerin to widen your coronary arteries.
Coronary Heart Disease - What Is Coronary Heart Disease?
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.
Arteriosclerosis / atherosclerosis - Diagnosis and treatment
It can detect calcium deposits in the coronary arteries. Calcium deposits can narrow the arteries and increase the risk of a heart attack. The image on the left shows where the heart is typically located in the body (A). The middle image shows the area of the coronary calcium scan image (B). The image on the right shows a coronary calcium scan (C).
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 calcium scan - Mayo Clinic
2023年7月22日 · A coronary calcium scan is done to check for calcium in the arteries that supply the heart. It can help diagnose early coronary artery disease. Coronary artery disease is a common heart condition. A buildup of calcium, fats and other substances in the heart arteries are often the cause. This buildup is called plaque.
Coronary angiogram - Mayo Clinic
2023年12月6日 · A coronary angiogram is a test that uses X-rays to look at the heart's blood vessels, called the coronary arteries. It's usually done to see if a blood vessel is narrowed or blocked. A coronary angiogram is most often used to diagnose coronary artery disease.
SARS-CoV-2 infects coronary arteries, increases plaque inflammation
2023年9月28日 · To test their theory, Giannarelli and her team took tissue from the coronary arteries and plaque of people who had died from COVID-19 and confirmed the virus was in those tissues. Then they took arterial and plaque cells – including macrophages and foam cells – from healthy patients and infected them with SARS-CoV-2 in a lab dish.