Atrial fibrillation is a type of irregular heartbeat that can cause blood clots to form in your heart. Having atrial fibrillation increases your risk of stroke by five times.
Information about atrial fibrillation for healthcare and other professionals.
A haemorrhagic stroke is a stroke that is caused by bleeding in or around the brain. Although they are less common than strokes that are caused by a blockage, they can be much more serious.