Europace 2005 7(1):92-93; doi:10.1016/j.eupc.2004.12.002
© 2005 The European Society of Cardiology. Published by Elsevier Ltd. All rights reserved.
CORRIGENDUM
Corrigendum to "A new treatment for atrial fibrillation based on spectral analysis to guide the catheter RF ablation" [Europace 2004;6:590–601]
Jose C. Pachon M*,
Enrique I. Pachon M,
Juan C. Pachon M,
Tasso J. Lobo,
Maria Z. Pachon,
Remy N.A. Vargas,
Denilda Q.V. Pachon,
Francisco J. Lopez M and
Adib D. Jatene
Dante Pazzanese Cardiology Institute and Sao Paulo Heart Hospital, Pacemaker and Arrhythmias Acoce, 515/31, Indianopolis, 04075023 Sao Paulo, SP, Brazil
*Tel./fax: +55 11 50514646. E-mail address: jcpachon{at}hotmail.com (J.C. Pachon M).
The authors regret that in the above article there was an error in Fig. 7. The correct figure and caption are given.
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Figure 7 Paroxysmal AF mechanism based on the "electrical resonant" properties of the "AF Nests". Simultaneous recordings from the same patient during AF. A: distal coronary sinus (compact myocardium); B: AF Nest in the left atrial roof (fibrillar myocardium); C: AF Nest in the left atrium interatial septum (fibrillar myocardium); D: right atrial lateral wall (compact myocardium); *: Ventricular activity in the coronary sinus channel. In B and C it is possible to see the out-of-phase dual state of the AF Nests during AF. The continuous line represents the "active state" (resonant behaviour featured by repetitive, high-frequency, disorganized and commonly intermittent responses – baseline not well defined). The interrupted line represents the "passive state" (bystander behaviour – in this moment the AF Nest only awaits for external stimulation – baseline well defined). If there are at least two AF Nests switching these states in out-of-phase condition the AF is maintained because when one is passive it is stimulated by the other being active (B and C). However, if there is a brief concurrence of the bystander state in all the AF Nests the AF suddenly stops. It is observed also that in this case the left atrial (A) and the right atrial lateral wall (D) present only the "passive or bystander state" the whole time, the typical behaviour of the compact myocardium. Our findings have shown that only the "fibrillar myocardium" presents the "resonant state" suggesting it is the real substrate of the paroxysmal AF. In this way during paroxysmal AF the "compact myocardium" is only a "passive element" just carrying stimuli out between several "AF Nests". Any condition reducing the "atrial resonant frequency" like the elimination of several "AF Nests" or line blocks preventing the communication between them may make the AF less frequent or even may preclude the arrhythmia. In many cases the pathophysiology may explain the AF maintenance even without the presence of any active leading reentry circuit.
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