Atrial fibrillation (patient information)
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What is Atrial fibrillation?
Atrial fibrillation/flutter is a heart rhythm disorder (arrhythmia). It usually involves a rapid heart rate, in which the upper heart chambers (atria) are stimulated to contract in a very disorganized and abnormal manner.
What are the symptoms of Atrial fibrillation?
You may not be aware that your heart is not beating in a normal pattern, especially if it has been occurring for some time.
Symptoms may include:
- Pulse that feels rapid, racing, pounding, fluttering, or too slow
- Pulse that feels regular or irregular
- Sensation of feeling the heart beat (palpitations)
- Shortness of breath while lying down
- Confusion
- Dizziness, light-headedness
- Fainting
- Fatigue
Note: Symptoms may begin or stop suddenly.
What causes Atrial fibrillation?
Who is at risk for Atrial fibrillation?
How do I know I have Atrial fibrillation?
When to seek urgent medical care
Treatment options
Where to find medical care for Atrial fibrillation
Directions to Hospitals Treating Atrial fibrillation