As a medical professional with expertise in cardiology, I can provide you with a detailed explanation of the causes of atrial fibrillation. Atrial fibrillation (AFib or AF) is a common heart rhythm disorder characterized by irregular and often rapid heart rates. Here are some of the key causes: 1. Cardiovascular Disease: Conditions that affect the heart and blood vessels can lead to AFib. This includes coronary artery disease, heart failure, and valvular heart disease. 2. High Blood Pressure: Also known as hypertension, this is one of the most significant risk factors for developing AFib. 3. Heart Abnormalities: Structural changes in the heart, such as an enlarged heart (cardiomegaly) or heart defects present at birth (congenital heart disease), can increase the risk. 4. Sleep Apnea: This sleep disorder, where breathing is repeatedly interrupted during sleep, has been linked to an increased risk of AFib. 5. Alcohol Abuse: Excessive alcohol consumption, particularly binge drinking, can trigger episodes of AFib. 6. Thyroid Disease: An overactive thyroid (hyperthyroidism) can cause AFib. 7. Obesity: Being overweight or obese can increase the risk of developing AFib. 8. Diabetes: This chronic condition can also contribute to the development of AFib. 9. Age: The risk of developing AFib increases with age. 10. Genetics: A family history of AFib can make an individual more susceptible to the condition. 11. Other Medical Conditions: Conditions like kidney disease, lung disease, and certain inflammatory diseases can also be linked to AFib. read more >>

Possible causes of atrial fibrillation. Abnormalities or damage to the heart's structure are the most common cause of atrial fibrillation. Possible causes of atrial fibrillation include: High blood pressure.read more >>