Related Conditions

Arrhythmia

An abnormal heartbeat (arrhythmia) is any variation in the normal heartbeat. Abnormal heartbeats occur when the heart has an irregular heart...

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...

Atrial septal defect (ASD)

Atrial septal defects (ASDs) are a group of rare disorders of the heart that are present at birth (congenital) and involve a hole in the wall...

Congestive heart failure

Heart failure is a condition in which the lower chambers of the heart (ventricles) are not able to pump blood effectively. When the heart muscle...

Dilated cardiomyopathy

Dilated cardiomyopathy is a serious condition that weakens your heart muscle and causes it to stretch, or dilate. When your heart muscle is weak,...

Heart attack

A heart attack—also called myocardial infarction or MI—occurs when an area of heart muscle is completely deprived of blood, and the heart muscle...

Heart disease

Heart disease is the leading cause of death in the United States. It is an umbrella term, made up of a variety of different diseases affecting the...

Mitral valve regurgitation

Mitral valve regurgitation means that one of the valves in your heart—the mitral valve—is letting blood leak backward into the heart. Heart...

Transient ischemic attack (TIA)

Some people call a transient ischemic attack (TIA) a mini-stroke, because the symptoms are like those of a stroke but do not last long. A TIA...

Ventricular fibrillation

Fast heart rhythms that begin in the lower chambers of the heart are called ventricular arrhythmias. They usually are fast and regular, such as...

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...

Wolff-Parkinson-White syndrome

Wolff-Parkinson-White syndrome is an abnormal electrical connection (or bypass tract) between the atria and ventricles of the heart. The bypass...

Stroke

A stroke occurs when a blood vessel in the brain is blocked or bursts. Without blood and the oxygen it carries, part of the brain starts to die....