An exercise electrocardiogram (EKG or ECG) is a test that checks for changes in your heart while you exercise. Sometimes EKG abnormalities can be seen only during exercise or while symptoms are present.
Ventricular Tachycardia - Topic Overview
If you have supraventricular tachycardia (SVT), go to the topic Supraventricular Tachycardia.What is ventricular tachycardia?Ventricular tachycardia is a fast heart rhythm that starts in the lower part of the heart (ventricles). If left untreated, some forms of ventricular tachycardia may worsen and lead to ventricular fibrillation, which can be life - threatening. What causes ventricular ...
An echocardiogram (also called an echo) is a type of ultrasound test that uses high - pitched sound waves that are sent through a device called a transducer.
Heart Attack and Unstable Angina - Overview
What is a heart attack?A heart attack occurs when blood flow to the heart is blocked. Without blood and the oxygen it carries, part of the heart starts to die. A heart attack doesn't have to be deadly. Quick treatment can restore blood flow to the heart and save your life.Your doctor might call a heart attack a myocardial infarction, or MI. What is angina, and why is unstable angina a ...
10 Heart-Friendly Breakfast Ideas
Get breakfast ideas that are delicious and also good for your heart health. Includes carrot-cake oatmeal, skillet granola, and more.
Mitral Valve Regurgitation - Overview
What is mitral valve regurgitation (MR)?The mitral valve is similar to a one - way gate in the left side of your heart. Normally, the valve only allows blood to flow from the upper to lower heart chamber. But if the valve becomes diseased or injured so it cannot close properly, blood can leak backward (regurgitate) into the upper chamber (left atrium). The heart then has to work harder to pump thi
Homozygous Familial Hypercholesterolemia
Learn about the causes, symptoms, and treatment of homozygous familial hypercholesterolemia, a disease that causes very high levels of cholesterol and raises your risk for heart disease.
Coronary Calcium Scan
Cardiac calcium scoring uses a special X-ray called a computed tomography (CT) scan to find the buildup of calcium on the walls of the arteries of the heart (coronary arteries).
What is atrial fibrillation?Atrial fibrillation (say “A - tree - uhl fih - bruh - LAY - shun”) is an irregular heart rhythm (arrhythmia) that starts in the upper parts (atria) of the heart. Normally, the heart beats in a strong, steady rhythm. In atrial fibrillation, a problem with the heart’s electrical system causes the atria to quiver, or fibrillate. The quivering upsets the normal rhythm
Beta-Blockers for Atrial Fibrillation
Drug details for Beta-blockers for atrial fibrillation.