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- Heart disease - Symptoms and causes - Mayo Clinic
Symptoms Heart disease symptoms depend on the type of heart disease Symptoms of heart disease in the blood vessels Coronary artery disease is a common heart condition that affects the major blood vessels that supply the heart muscle A buildup of fats, cholesterol and other substances in and on the artery walls usually causes coronary artery
- How the Heart Works - How Blood Flows through the Heart | NHLBI, NIH
Oxygen-poor blood from the body enters your heart through two large veins called the superior and inferior vena cava The blood enters the heart's right atrium and is pumped to your right ventricle, which in turn pumps the blood to your lungs
- Heart and Vascular Diseases - NHLBI, NIH
Heart and vascular, or cardiovascular, diseases include conditions such as arrhythmias, coronary heart disease, heart attack, high blood pressure, congenital heart defects, vascular dementia, and stroke The National Heart, Lung, and Blood Institute (NHLBI) supports research on the causes, diagnosis, treatment, and prevention of heart and vascular diseases, and the interplay of these diseases
- Coronary Heart Disease Risk Factors - NHLBI, NIH
Your risk of coronary heart disease increases based on the number of risk factors you have and how serious they are Some risk factors — such as high blood pressure and unhealthy cholesterol levels can be adjusted through heart-healthy lifestyle changes Other risk factors, such as your age, family history, and race and ethnicity, cannot be changed
- Cardiomyopathy - Symptoms and causes - Mayo Clinic
Overview Cardiomyopathy (kahr-dee-o-my-OP-uh-thee) is a disease of the heart muscle It causes the heart to have a harder time pumping blood to the rest of the body, which can lead to symptoms of heart failure Cardiomyopathy also can lead to some other serious heart conditions There are various types of cardiomyopathy The main types include dilated, hypertrophic and restrictive
- Heart disease - Diagnosis and treatment - Mayo Clinic
Learn about symptoms, causes and treatment of cardiovascular disease, a term describing a wide range of conditions that can affect the heart
- What Is Coronary Heart Disease? - NHLBI, NIH
Coronary heart disease is a type of heart disease that occurs when the arteries of the heart cannot deliver enough oxygen -rich blood to the heart muscle due to narrowing from the buildup of fatty deposits called plaque It is also sometimes called coronary artery disease or ischemic heart disease
- Atrial fibrillation - Symptoms and causes - Mayo Clinic
Atrial fibrillation (AFib) is a heart rhythm disorder In a typical heart, a group of cells called the sinus node sends electrical signals that start each heartbeat The signals go across the upper heart chambers to the AV node, where they usually slow down Then the signals go to the lower heart chambers, causing them to squeeze and pump out blood But in AFib, the signals in the upper
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