Atrial fibrillation (AFib) is a kind of irregular heartbeat, or arrhythmia. A problem with the electrical signals that control your heart’s pumping action causes it to beat too fast in a pattern that ...

Atrial fibrillation (Afib) is a type of cardiac arrhythmia, or abnormal heart rhythm, that is very common — and more prevalent than previously thought. A large study published in October 2024 in a ...

Atrial fibrillation (AFib) is a condition that causes the heart to beat rapidly and irregularly. This can lead to heart failure, which develops when the heart is not pumping blood efficiently around ...

Cardiac ablation can improve symptoms and may extend a person’s life by treating certain heart arrhythmias. The procedure is often effective, but some serious complications can occur. Cardiac ablation ...

Researchers have new evidence that light could be used to restore normal heart rhythm in atrial fibrillation, or afib, another step on the path toward an alternative to using electrical shocks. In a ...

When you have transthyretin amyloid cardiomyopathy (ATTR-CM), proteins called amyloids build up in your heart, stiffening the muscle and interfering with its ability to pump blood throughout the body.