Patient Resources
Atrial Fibrillation (AF)
Atrial fibrillation (AF) is a common disorder affecting the heart's rhythm. In AF the two upper chambers of the heart - the atria - beat at an abnormally fast rate.
AF affects about 2% of the general population. It is more common in people older than 65 years of age.

Possible symptoms
People with AF may experience heart palpitations and sometimes feel an irregular 'fluttering' of the heart. Some people notice that they have an irregular pulse.
AF can cause general feelings of tiredness, weakness, reduced ability to exercise, discomfort or dizziness. Occasionally this may lead to fainting or collapse.
However, the symptoms of AF are not always obvious. Up to 1 in 5 people with AF are undiagnosed, and therefore not treated.

AF is often first detected when a person has an irregular pulse. AF is accurately diagnosed with an electrocardiogram (ECG), a test which monitors the rhythm and rate of the heart.
Send to Patient
Understanding Atrial Fibrillation (AF)
Notification Title