
How the Heart Works - How Blood Flows through the Heart | NHLBI, NIH
Jun 25, 2025 · 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 …
Heart failure - Symptoms and causes - Mayo Clinic
Jan 21, 2025 · Heart failure occurs when the heart muscle doesn't pump blood as well as it should. Blood often backs up and causes fluid to build up in the lungs and in the legs. The fluid buildup can …
Heart attack - Symptoms & causes - Mayo Clinic
Oct 9, 2023 · A heart attack occurs when an artery that sends blood and oxygen to the heart is blocked. Fatty, cholesterol-containing deposits build up over time, forming plaques in the heart's arteries. If a …
What Is Coronary Heart Disease? - NHLBI, NIH
Dec 27, 2024 · 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 …
Coronary Heart Disease Treatment - NHLBI, NIH
Dec 27, 2024 · Coronary heart disease treatment can include heart-healthy lifestyle changes, medicines, or procedures to help manage heart disease.
Total Artificial Heart - What to Expect | NHLBI, NIH
Apr 12, 2023 · Preparing to receive an artificial heart, surgery, and recovery can take several months in and outside the hospital. Learn about what to expect before and during surgery and while you recover.
Heart failure - Diagnosis and treatment - Mayo Clinic
Jan 21, 2025 · Heart failure Diagnosis To diagnose heart failure, your healthcare professional examines you and asks questions about your symptoms and medical history. Your care professional checks to …
Heart arrhythmia - Symptoms and causes - Mayo Clinic
Oct 13, 2023 · Coronary artery disease, other heart problems and previous heart surgery. Narrowed heart arteries, a heart attack, heart valve disease, prior heart surgery, heart failure, cardiomyopathy …
Arrhythmias - Conduction Disorders | NHLBI, NIH
Mar 24, 2022 · A conduction disorder, also known as heart block, is a problem with the electrical system that controls your heart’s rate and rhythm. Learn about the causes, symptoms, and treatments for …
Cardiovascular disease is the term for all types of diseases that afect the heart or blood vessels, including coronary heart disease (clogged arteries), which can cause heart attacks, stroke, heart …