The heart has four chambers: atria on the top and ventricles on the bottom. Blood flows from the veins into the right atrium, passing through the tricuspid valve into the right ventricle, which ...

A woman's hand with an Apple Watch Series 4 with the ECG app on the screen. Dr. Le thinks wearable devices now picking up more diseases than before contributed to the increased cases of AFib. Atrial ...

Valvular atrial fibrillation (A-fib) involves a condition that leads to an irregular or abnormal heart rhythm. This can increase a person’s risk of cardiovascular complications, such as stroke.

Atrial Fibrillation (AFib) is one of the most common forms of irregular heart rhythm disorders (arrhythmias). It originates in the atria, the upper chambers of the heart, and causes the heart to beat ...

A few years ago I was out walk­ing with an older relative when she suddenly stopped and put her hands out for support. Her heart­beat had gone haywire, causing chest pains and making her feel ...

If you have a racing or irregular heartbeat, also known as an arrhythmia, one likely suspect is atrial fibrillation (AFib). “Of all the possible heart rhythm disorders, atrial fibrillation is by far ...

Seeing a loved one pass out with their eyes rolled back is a terrifying thing to experience. That minute or two you live ...

Atrial fibrillation (AFib) can lead to blood clots, stroke, heart failure, and other heart-related complications. New consumer patient research from the Dallas-based American Heart Association found ...

Over 5 million Americans have atrial fibrillation, but many don’t know the red flags.

Running has so many health benefits, it’s counterintuitive to consider any negative effects endurance training may have on the body. However, research suggests that some runners may be at higher risk ...