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Atrial Fibrillation Information - symptom, cause, treatment, picture of Atrial Fibrillation
Atrial fibrillation is the commonest chronic arrhythmia, with an incidence and prevalence that rise with age, so that it affects nearly 10% of individuals over age 80 years. It occurs in rheumatic and other forms of valvular heart disease, dilated cardiomyopathy, atrial septal defect, hypertension, and coronary heart disease as well as in patients with no apparent cardiac disease; it may be the initial presenting sign in thyrotoxicosis, and this condition should be excluded with the initial episode. Atrial fibrillation often appears paroxysmally before becoming the established rhythm. Pericarditis, chest trauma, thoracic or cardiac surgery, or pulmonary disease (as well as medications such as theophylline and -adrenergic agonists) may cause attacks in patients with normal hearts. Acute alcohol excess and alcohol withdrawal—and, in predisposed individuals, even consumption of small amounts of alcohol—may precipitate atrial fibrillation. This latter presentation, which is often termed "holiday heart," is usually transient and self-limited. Short-term rate control usually suffices as treatment.
Atrial Fibrillation Paroxysmal
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