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.

US President Joe Biden has the heart condition atrial fibrillation. This increases his risk of having a stroke five-fold and doubles the risk of a heart attack or dementia. More than 37.5 million ...

Lone atrial fibrillation is a form of irregular heartbeat that can cause excessively fast beating. It only affects adults under 60 years old and can be asymptomatic or present symptoms, such as a ...

In the U.S., atrial fibrillation (AF), a heart condition that causes an irregular heartbeat in the upper chambers of the heart, affects up to one in three people in their lifetime. Significant ...

Heart disorders can show up in many ways, but one of the most common is an irregular heart rhythm known as atrial fibrillation, or AFib. In this condition, the heart beats fast and inconsistently, ...