Atrial fibrillation
Atrial fibrillation (AF or AFib) is a cardiac arrhythmia (an abnormality of heart rate or rhythm) originating in the atria. Abnormal electrical impulses in the atria cause the ventricles to contract erratically. AF is the most common cardiac arrhythmia. If rapid, it may compromise blood flow and cause fainting, orthostatic hypotension (low blood pressure on standing up) or low blood pressure. In addition, it predisposes to thrombosis and embolism to the brain, being a prime risk factor for stroke.
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~ Table of Content ~
| ► | Introduction |
| ► | Signs and symptoms |
| ► | Diagnosis |
| ► | Causes |
| ► | Pathophysiology |
| ► | Treatment |
| ► | References |
| ► | Related topics |
| ► | External links |
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