Atrial Fibrillation and Stroke Risk
Atrial fibrillation (AFib) is a type of arrhythmia, or abnormal heart rhythm, that increases the risk of stroke. When the heart beats too quickly or irregularly, it can cause blood to pool in the heart, allowing it to form clots that can travel to the brain and cause a stroke. AFib is the most common arrhythmia, affecting an estimated 2.2 to 6.1 million people in the United States. It is a leading cause of stroke, accounting for 15 to 20 percent of all strokes.
Arrhythmia is an abnormal heartbeat or irregular rhythm of the heart. It can be caused by a variety of conditions, including heart disease, medications, and alcohol or drug abuse.
Stroke is a medical emergency that occurs when the blood supply to the brain is cut off, causing brain cells to die and leading to permanent brain damage. Strokes can be caused by a blocked artery or a rupture in a blood vessel in the brain.
People with AFib are five times more likely to have a stroke than those without the condition. Treatment for AFib involves controlling the heart rate and preventing blood clots from forming. Medications, lifestyle changes, and procedures such as ablation may be recommended.
It is important for people with AFib to understand their risk of stroke and to take steps to reduce that risk. Regular medical check-ups and lifestyle changes are key to managing the condition and reducing the risk of stroke.