For Atrial Fibrillation we have terms and definitions in 5 topics. The topics are Cardiovascular Health, Female Health, Health, Horse Health and Medical.

Atrial Fibrillation (Cardiovascular Health)

An irregular heart rhythm caused by an uncontrolled or chaotic contraction of the atria, the upper chambers of the heart. (See How the Heart Works: Heart Chambers.) This is a common rhythm problem after injury, surgery or irritability of the heart muscle. In some cases, the heart rhythm may return to normal by itself or with medication. Cardioversion may also be done by a physician to return the heart to its regular rhythm. (Read more)

Atrial Fibrillation (Female Health)

Among heart diseases, atrial fibrillation, a heart rhythm disturbance that causes the small chambers of the heart to beat irregularly, allowing blood clots to form, is the most important. It is particularly common in elderly people, in whom it is present in up to 10 percent. It is important to recognize atrial fibrillation because strokes can be prevented by using a blood-thinning medication to prevent clots from forming in the heart.

Atrial Fibrillation (Health)

Abnormal rhythm of the heart that can result in an increased risk of stroke due to the formation of emboli (blood clots) in the heart

Atrial Fibrillation (Horse Health)

Arrhythmia characterized by irregular, disorganized, chaotic changes in the electrical activity of the upper chambers of the heart, resulting in abnormal contractions.

Atrial Fibrillation (Medical)

An irregular heartbeat in which the upper chambers of the heart (the atria) beat inconsistently and rapidly

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