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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. Atrial fibrillation - Symptoms and causes - Mayo Clinic

    Oct 3, 2025 · Atrial fibrillation (AFib) is an irregular and often very rapid heart rhythm. An irregular heart rhythm is called an arrhythmia. AFib can lead to blood clots in the heart. The condition also increases …

  3. Atrial Fibrillation (AFib): Symptoms & Treatment - Cleveland Clinic

    AFib causes a fast, chaotic heartbeat. An electrocardiogram (ECG/EKG) test can show this irregular rhythm in graph form. AFib (atrial fibrillation) is an irregular heart rhythm that begins in the upper …

  4. Arrhythmia, AFib & Treatment Options | Georgia Heart Institute

    Atrial fibrillation (AFib) disrupts the heart’s normal rhythm, causing the upper chambers (atria) to quiver instead of beating effectively. This disrupts blood flow to the lower chambers (ventricles) and …

  5. Atrial Fibrillation (AFib): Symptoms, Treatment, When to Worry

    Sep 14, 2025 · Atrial fibrillation, often called AFib, causes an irregular and sometimes rapid heartbeat. It ranks as one of the most common arrhythmias (irregular heart rhythms). AFib affects more than 5 …

  6. 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 complications. AFib …

  7. Atrial Fibrillation (AFib) Center: Symptoms, Causes, and Treatments

    Heart rate control is a key way to manage atrial fibrillation. Doctors consider it one of the four pillars of AFib care. One way to control AFib is to take rhythm control medication, which...

  8. Atrial Fibrillation - What Is Atrial Fibrillation? | NHLBI, NIH

    Nov 30, 2022 · Atrial fibrillation, also known as A-fib or AF, is one of the most common types of arrhythmias (irregular heart rhythms). Atrial fibrillation causes your heart to beat irregularly and …

  9. 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 atrial …

  10. 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 chambers, called the …