What does A-Fib refer to in the context of heart conditions?

A-Fib, or atrial fibrillation, refers specifically to an irregular and often rapid heartbeat that can lead to various complications, including stroke and heart failure. In this condition, the heart's two upper chambers (the atria) experience chaotic electrical signals, which prevents them from beating effectively. This results in an irregular heartbeat, which can be felt as palpitations or a fluttering sensation in the chest.

The significance of recognizing A-Fib lies in its clinical implications, as the abnormal rhythm might require treatment in the form of medications or procedures to restore a normal rhythm and reduce the risk of associated complications. Therefore, understanding A-Fib as an irregular heartbeat is vital in the context of heart conditions.