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Atrial FibrillationSymptoms

What is Atrial Fibrillation?

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Atrial fibrillation diagnosis.
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Doctor listening to smiling senior man's heart.
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Demographics of AF


Doctor drawing image of ekg and heart.
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How AF affects the heart


Model of the chambers of the heart.
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Sinoatrial (SA) node: part 1


Electrical activity heart model.
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Sinoatrial (SA) node: part 2


Senior man with fast heart beat, hands on chest.
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Misfiring electrical signals: part 1


EKG monitor.
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Misfiring electrical signals: part 2


Dizzy man outside.
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Symptoms of AF: part 1


Cardiologist listening to woman's heart.
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Symptoms of AF: part 2


Doctor listening to senior man's heart with stethoscope.
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AF and stroke: part 1


Emergency department sign at hospital.
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AF and stroke: part 2


Gerald Couzens

Gerald Couzens

Gerald Secor Couzens is the author and coauthor of more than two dozen books about health and medical topics, specializing in prostate health and memory disorders. He was the co-creator and managing editor of The Johns Hopkins Prostate Bulletin for more than 20 years.