Daniel Moore was about 30 the first time it happened. At the end of a long, hot, stressful day, he chugged an ice-cold glass of milk. “It felt like a bunny rabbit trying to jump out of my chest," said ...

JACKSONVILLE, Fla. – Ascension St. Vincent’s is using new technology to treat patients with atrial fibrillation (A-fib). Atrial fibrillation is when the heart has an irregular and often rapid rhythm.

When someone has atrial fibrillation, it means the two upper chambers of the heart have ceased to function properly. It occurs due to a malfunction in a cluster of cells in the right atrium, known as ...

Atrial fibrillation, or A-fib, is the most common type of arrhythmia, affecting at least 2.7 million people in the United States. This number is expected to grow to more than 12 million by 2030, which ...