What is the meaning of the abbreviation a-fib?

A-fib is the abbreviation for atrial fibrillation, which is a common heart rhythm disorder characterized by an irregular and often rapid heartbeat. In this condition, the atria—the two upper chambers of the heart—fail to contract effectively, leading to increased risks of stroke and other heart-related complications. Understanding this medical term is essential in the context of cardiovascular health, as timely recognition and management of atrial fibrillation can significantly impact patient outcomes. The other terms presented do not accurately describe this specific cardiac condition and are not recognized medical terminology associated with heart rhythm disorders.