The pulmonary veins (PVs) are a dominant source of ectopic activity initiating atrial
fibrillation (AF).
1
,
2
We and others have demonstrated that extra-PV ectopic activity could initiate AF,
and elimination of ectopic activity can cure this specific group of patients with
AF.
- Chen S.A.
- Hsieh M.H.
- Tai C.T.
- Tsai C.F.
- Prakash V.S.
- Yu W.C.
- Hsu T.L.
- Ding Y.A.
- Chang M.S.
Initiation of atrial fibrillation by ectopic beats originating from the pulmonary
veins: electrophysiological characteristics, pharmacological responses, and effects
of radiofrequency ablation.
Circulation. 1999; 100: 1879-1886
3
,
4
,
5
,
6
The Bordeaux group demonstrated that extensive ablation of extra-PV areas after isolation
of all four PVs can convert chronic AF to focal or macroreentrant atrial tachycardias,
and further elimination of these atrial tachycardias could maintain sinus rhythm in
approximately 90% of patients with chronic AF.
7
Furthermore, we also showed initiation of AF without any initiating PV ectopy, presumably
due to reentry.
8
Therefore, we must consider the important role of both ectopy and reentry from extra-PV
areas in the initiation and maintenance of AF, not only in patients with paroxysmal
AF but also those with chronic AF.To read this article in full you will need to make a payment
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References
- Spontaneous initiation of atrial fibrillation by ectopic beats originating in the pulmonary veins.N Engl J Med. 1998; 339: 659-666
- Initiation of atrial fibrillation by ectopic beats originating from the pulmonary veins: electrophysiological characteristics, pharmacological responses, and effects of radiofrequency ablation.Circulation. 1999; 100: 1879-1886
- Initiation of atrial fibrillation by ectopic beats originating from the superior vena cava: electrophysiological characteristics and results of radiofrequency ablation.Circulation. 2000; 102: 67-74
- Catheter ablation of paroxysmal atrial fibrillation initiated by non-pulmonary vein ectopy.Circulation. 2003; 107: 3176-3183
- Catheter ablation of paroxysmal atrial fibrillation originating from the non-pulmonary vein areas.in: Huang S. Wood M. Catheter Ablation of Cardiac Arrhythmias. Elsevier Science, Burlington, MA2006: 289-304
- Catheter ablation of atrial fibrillation originating from the non-pulmonary vein foci.J Cardiovasc Electrophysiol. 2005; 16: 229-232
- Localized sources maintaining atrial fibrillation organized by prior ablation.Circulation. 2006; 113: 616-625
- Electrophysiological characteristics and catheter ablation in patients with paroxysmal right atrial fibrillation.Circulation. 2005; 112: 1692-1700
- Predicting the arrhythmogenic foci of atrial fibrillation before atrial transseptal procedure: implication for catheter ablation.J Cardiovasc Electrophysiol. 2000; 11: 750-757
Article info
Publication history
Published online: September 12, 2006
Identification
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© 2006 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.