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See inside a heart during atrial fibrillation. WebMD shows the causes, tests, and treatments for this common heart rhythm problem through illustrations and photos.
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Atrial fibrillation ( AF, AFib or A-fib) is an abnormal heart rhythm (arrhythmia) characterized by rapid and irregular beating of the atrial chambers of the heart. [11] [12] It often begins as short periods of abnormal beating, which become longer or continuous over time. [4] It may also start as other forms of arrhythmia such as atrial flutter that then transform into AF. [13]
The United States Air Force articulates its core missions as air supremacy, global integrated intelligence, surveillance and reconnaissance, rapid global mobility, global strike, and command and control . The United States Air Force is a military service branch organized within the Department of the Air Force, one of the three military ...