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  1. First Interstate Bank

    Nov 24, 2025 · Explore personal and business banking, loans, and digital tools backed by local service and community commitment.

  2. FIB Definition & Meaning - Merriam-Webster

    The meaning of FIB is a trivial or childish lie. How to use fib in a sentence. Synonym Discussion of Fib.

  3. Atrial Fibrillation (AFib) Signs, Symptoms and Treatment

    Feb 5, 2025 · Atrial fibrillation (AFib) is a common type of irregular heartbeat that affects an estimated five million Americans.

  4. FIB | English meaning - Cambridge Dictionary

    FIB definition: 1. to tell a small lie that does not cause any harm: 2. a small lie that does not cause any harm…. Learn more.

  5. Understanding Atrial Fibrillation (A-Fib) | UMass Memorial Health

    Atrial fibrillation, or A-fib, is a common type of heart arrhythmia. It causes fast, chaotic electrical signals in the atria.

  6. Atrial Fibrillation – Symptoms and Causes | Penn Medicine

    What is atrial fibrillation? Atrial fibrillation (AFib) is a common heart rhythm disorder where the heart’s upper chambers, called the atria, beat irregularly and out of sync with the lower …

  7. What is Atrial Fibrillation? - American Heart Association

    Mar 26, 2025 · Atrial fibrillation is an irregular heartbeat, or arrhythmia. Atrial fibrillation, also known as AFib or AF, can lead to blood clots, stroke, heart failure and other heart-related …

  8. Understanding atrial fibrillation and its symptoms - UCLA Health

    Dec 6, 2024 · 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 …

  9. Understanding Atrial Fibrillation (A-fib) | Veterans Affairs

    Atrial fibrillation (A-fib) is the most common type of arrhythmia. An arrhythmia is any problem with the speed or pattern of the heartbeat. A-fib causes the heart to beat in an irregular pattern, …

  10. Atrial Fibrillation (A-Fib): Symptoms & Risk Factors | Brigham and ...

    Atrial fibrillation (A-fib) is a type of arrhythmia (abnormal heartbeat) that affects almost five million Americans. It often originates in the left atrium (the upper left chamber of the heart). When …