Abstract
PV-Tachycardias in Isolated PV. Pulmonary vein (PV) arrhythmogenicity underlying the maintenance of atrial fibrillation (AF) may be explained by three mechanisms: enhanced automaticity, triggered activity, and reentry. There are only a few reports describing sustained PV tachycardias (PVT) following electrical disconnection from the left atrium, in which the electrophysiological features are most consistent with a reentrant mechanism. We describe the case of a patient with paroxysmal AF demonstrating PVT within an isolated PV with high-density mapping revealing two different PVTs interacting in a "ping-pong" manner.
Original language | English |
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Pages (from-to) | 441-445 |
Number of pages | 5 |
Journal | Journal of Cardiovascular Electrophysiology |
Volume | 18 |
Issue number | 4 |
DOIs | |
Publication status | Published or Issued - Apr 2007 |
Externally published | Yes |
Keywords
- Arrhythmia mechanisms
- Atrial fibrillation
- Focal tachycardia
- Pulmonary vein isolation
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology (medical)