What is the definition of lone atrial fibrillation (Afib) (AF)?

Updated: Nov 18, 2019
  • Author: Lawrence Rosenthal, MD, PhD, FACC, FHRS; Chief Editor: Jeffrey N Rottman, MD  more...
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In addition to the above schema, the term "lone atrial fibrillation" has been used to identify AF in younger patients without structural heart disease, who are at a lower risk for thromboembolism. The definition of lone AF remains controversial, but it generally refers to paroxysmal, persistent, or permanent AF in younger patients (< 60 y) who have normal echocardiographic findings. [4]  The most recent ACC/AHA/HRS guidelines recommend against using “lone AF” as a separate entity and utilizing the standard AF management tools for all patients. [1]

For patient education resources, see Heart Health Center and Brain and Nervous System Center, as well as Atrial Fibrillation (AFib)Arrhythmias (Heart Rhythm Disorders)Stroke, and Supraventricular Tachycardia (SVT, PSVT).

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