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  1. 2 days ago · 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. It often begins as short periods of abnormal beating, which become longer or continuous over time.

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  2. en.wikipedia.org › wiki › CardiologyCardiology - Wikipedia

    5 days ago · The heart. Blood flow through the valves. As the center focus of cardiology, the heart has numerous anatomical features (e.g., atria, ventricles, heart valves) and numerous physiological features (e.g., systole, heart sounds, afterload) that have been encyclopedically documented for many centuries.

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  4. 5 days ago · Atrial fibrillation interrupts the normal functioning of the sinoatrial node, a mass of specialized muscle tissue in the right atrium that is the primary source of the impulses which serve as the natural pacemaker of the heart.

  5. 5 days ago · What is an Arrhythmia? An arrhythmia, also called a dysrhythmia, is an irregular heartbeat. The normal rhythm of your heart involves a coordinated electrical impulse that originates from a specific area and travels through your heart chambers, causing them to contract and pump blood efficiently.

  6. 2 days ago · Electrocardiography is the process of producing an electrocardiogram (ECG or EKG), a recording of the heart's electrical activity through repeated cardiac cycles. It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart using electrodes placed on the skin.

  7. 5 days ago · The purpose of this activity is to provide an overview of the most current medical understanding and therapeutic strategies for the diagnosis, prevention and management of cardiovascular disease, to advance the care of individuals with various forms of vascular disease, and to increase the practice of evidence-based medicine by healthcare p...

  8. 5 days ago · An irregular beat, also known as cardiac arrhythmia, is caused by dysfunctional electrical impulses, which may result in the heart beating too slow, too quickly, or with an unusual rhythm.

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