Atrial Fibrillation (AF or AFib) is a medical condition in which the heart beats irregularly and with a rapid rate. It is the most common type of arrhythmia, and affects people of all ages, though it is more common among older adults.
What Causes Atrial Fibrillation?
Atrial fibrillation is caused by an electrical disturbance in the heart's normal rhythm. This disturbance can be caused by a variety of factors, including high blood pressure, coronary artery disease, thyroid disease, sleep apnea, or certain medications.
Who Is at Risk for Atrial Fibrillation?
Atrial fibrillation is most commonly seen in people over the age of 65, but it can affect people of any age. People with other underlying health conditions, such as diabetes, high blood pressure, or heart disease, are more likely to develop atrial fibrillation.
How Is Atrial Fibrillation Diagnosed?
Atrial fibrillation is usually diagnosed with an electrocardiogram (ECG or EKG). This test measures the heart's electrical activity and can detect irregularities in the rhythm. Your doctor may also order additional tests, such as an echocardiogram or blood tests, to help diagnose the condition.
What Are the Symptoms of Atrial Fibrillation?
The most common symptoms of atrial fibrillation include palpitations, dizziness, shortness of breath, and fatigue. People with atrial fibrillation may also experience chest pain or discomfort, an irregular pulse, or lightheadedness.
How Is Atrial Fibrillation Treated?
Treatment for atrial fibrillation depends on the underlying cause. Your doctor may prescribe medications to help control your heart rate and rhythm, or to prevent blood clots. Other treatments may include electrical cardioversion, catheter ablation, or surgery.