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8 mar 2024 · Causes of atrial fibrillation. Problems with the heart's structure are the most common cause of atrial fibrillation (AFib). Heart diseases and health problems that can cause AFib include: A heart problem you're born with, called a congenital heart defect. A problem with the heart's natural pacemaker, called sick sinus syndrome.
The exact cause of atrial fibrillation is unknown, but it's more common with age and affects certain groups of people more than others. Atrial fibrillation is common in people with other heart conditions, such as: high blood pressure (hypertension) atherosclerosis. heart valve disease.
What causes Afib? Changes or damage to your heart’s tissue and electrical system cause atrial fibrillation. Usually, coronary artery disease, high blood pressure or heart failure can cause these changes. Other causes include heart valve issues, hyperthyroidism or excessive alcohol use.
30 lis 2022 · What causes atrial fibrillation? Typically, the electrical signals that make the heart pump start in the sinoatrial node, a special area of the upper right chamber of the heart called the right atrium.
29 lut 2024 · The basic cause of AFib is disorganized signals that cause the atria of your heart to squeeze very fast and out of sync. They contract so quickly that the heart walls quiver, or fibrillate....
15 lis 2023 · Atrial fibrillation is a common heart condition that causes irregular heartbeats. Learn about its causes, symptoms, and treatment options in this comprehensive guide.
What causes atrial fibrillation? When the heart beats normally, its muscular walls tighten and squeeze (contract) to force blood out and around the body. They then relax so the heart can fill with blood again.
