What is atrial fibrillation?
Atrial fibrillation is an irregular heart rhythm arising in the upper chambers.
Symptoms, causes and assessment
Palpitations, fatigue, breathlessness or dizziness may occur, while some people have no symptoms. Diagnosis requires an ECG and sometimes longer monitoring, not simply feeling a pulse. Age, high blood pressure and heart conditions can affect risk.
Care and when to seek help
Stroke risk, rate or rhythm control and anticoagulation are assessed individually; do not start or stop medicines on your own. Chest pain, fainting or sudden stroke signs need emergency care.
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