When electrical abnormalities cause abnormal heart rhythms, this is called a heart arrhythmia. Learn more about the different types of arrhythmia and possible treatments.
An occasional extra heartbeat that temporarily changes the heart's regular rhythm. The extra heartbeat originates in one of the heart's lower chambers.
An occasional extra heartbeat that disrupts the heart's normal rhythm. This type of extra heartbeat begins in one of the upper chambers of the heart.
A type of abnormal heart rhythm in which the heart beats too quickly.
A malfunction in the heart's electrical system that causes the heart to beat slower than it should.
An atrial septal defect is a hole in the wall that divides the two chambers of the heart. Learn about symptoms and treatment.
Tachycardia occurs when the heart beats faster than 100 beats per minute. It can occur as a normal response to exercise, fever, stress, or other stimuli. Tachycardia that occurs abruptly and without a clear cause, or when the heart rate increases out of proportion for a given activity is considered abnormal.
Condition in which electrical signals in the heart are blocked, causing the heart to beat out of sync.
A ventricular septal defect is a hole in the wall between the two lower chambers of the heart and is a type of congenital heart defect. Learn about symptoms and treatment.