What are the causes of atrial fibrillation?

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.

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.