Atrial Fibrillation (cont.)
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What causes atrial fibrillation (AFib)?
Atrial fibrillation may occur without evidence of underlying heart disease. This is more common in younger people, about half of whom have no other heart problems. This is often called lone atrial fibrillation. Some of the causes that do not involve the heart include the following:
Most commonly, atrial fibrillation occurs as a result of some other cardiac condition (secondary atrial fibrillation).
Atrial fibrillation frequently occurs after cardiothoracic surgery or procedures, but often resolves in a few days.
For many people with infrequent and brief episodes of atrial fibrillation, the episodes are brought on by a number of triggers. Because some of these involve excessive alcohol intake or skipping medications, this is sometimes called "holiday heart "or "Saturday night heart." Some of these people are able to avoid episodes or have fewer episodes by avoiding their triggers. Common triggers include alcohol and caffeine in susceptible individuals.
What does atrial fibrillation look like (pictures)?
Picture of the heart
Medically Reviewed by a Doctor on 5/25/2016
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