Introduction

Atrial fibrillation, the most common "sustained arrythmia" seen in the clinical setting (Prystowsky, et. al, 1996), can occur as a result of other disease processes such as rheumatic heart disease, CHF, cardiomyopathy, or MI. However, atrial fibrillation can occur in individuals who have no underlying problems.

This spontaneous type of atrial fibrillation is termed "Lone Atrial Fibrillation". It is characterized by the absence of any etiologic factors and normal ventricular function (Prystowsky, et. al, 1996). Statistics show that approximately 3% of adults in the United States suffer from this condition (Clark, 2001).

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Lone Atrial Fibrillation refers to:
Atrial fibrillation that occurs once
 Atrial fibrillation that is associated with MI
 Atrial fibrillation that is not associated with any underlying medical condition.
 Atrial fibrillation that is associated with CHF