Abstract
Focal waves appear frequently at the epicardium during persistent atrial fibrillation (AF), however, the origin of these waves is under debate. We performed simultaneous endo-epicardial mapping of the right atrial wall during longstanding persistent AF in a patient undergoing cardiac surgery. During 10 seconds 53 and 59 focal waves appeared at random at respectively the endocardium and epicardium. Repetitive focal activity did not last longer than 3 cycles. Transmural asynchrony and conduction might be the origin of focal waves. Asynchronous propagation of fibrillation waves in 3 dimensions would stabilize the arrhythmia and could explain the limited success of persistent AF ablation.
Original language | English |
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Article number | 1260.e19 |
Number of pages | 3 |
Journal | Canadian Journal of Cardiology |
Volume | 32 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Oct 2016 |
Keywords
- BREAKTHROUGH
- HEART