Atrial fibrillation classification
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Atrial Fibrillation Microchapters | |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Overview
Although several clinical classification plans and protocols have been proposed, none of them fully account for all aspects of atrial fibrillation. The American Heart Association, American College of Cardiology, and the European Society of Cardiology have proposed the following classification system based on simplicity and clinical relevance:[1]
| AF Category | Defining Characteristics |
|---|---|
| First detected | only one diagnosed episode |
| Paroxysmal | recurrent episodes that self-terminate in less than 7 days |
| Persistent | recurrent episodes that last more than 7 days |
| Permanent | an ongoing long-term episode |
First detected atrial fibrillation
Any patient with new diagnosed AF is in this category, as the exact onset and chronicity of the disease is often uncertain.
Recurrent atrial fibrillation
Two or more identified episodes of atrial fibrillation are named as recurrent form of atrial fibrillation. This is further classified into paroxysmal and persistent based on when the episode terminates without therapy. Atrial fibrillation is said to be paroxysmal when it terminates spontaneously within 7 days, most commonly within 24 hours.
The term 'Persistent' or 'chronic' is used if diagnosis of atrial fibrillation established for more than seven days. Differentiation of paroxysmal from chronic or established AF is based on the history of recurrent episodes and the duration of the current AF episode.[1][2][3]
Lone atrial fibrillation (LAF)
Lone atrial fibrillation is defined as atrial fibrillation in the absence of clinical or echocardiographic findings of cardiopulmonary disease including hypertension.[1] Patients in this group are young individuals (less than 60 years old).
See Also
References
- ↑ 1.0 1.1 1.2 Fuster V, Rydén LE, Cannom DS; et al. (2006). "ACC/AHA/ESC 2006 Guidelines for the Management of Patients with Atrial Fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the European Society of Cardiology Committee for Practice Guidelines (Writing Committee to Revise the 2001 Guidelines for the Management of Patients With Atrial Fibrillation): developed in collaboration with the European Heart Rhythm Association and the Heart Rhythm Society". Circulation. 114 (7): e257–354. doi:10.1161/CIRCULATIONAHA.106.177292. PMID 16908781.
- ↑ Levy S (1998). "Epidemiology and classification of atrial fibrillation". J Cardiovasc Electrophysiol. 9 (8 Suppl): S78–82. PMID 9727680
- ↑ Levy S (2000). "Classification system of atrial fibrillation". Curr Opin Cardiol. 15 (1): 54–7. PMID 10666661
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