Rostock, T.O'Neill, M.Takahashi, Y.Sanders, P.Haissaguerre, M.2008-04-242008-04-242007Journal of Cardiovascular Electrophysiology, 2007; 18(4):441-4451045-38731540-8167http://hdl.handle.net/2440/42805The definitive version is available at www.blackwell-synergy.comPulmonary 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.enPulmonary VeinsHumansAtrial FibrillationTachycardiaAdenosineAnti-Arrhythmia AgentsCatheter AblationTreatment OutcomeMiddle AgedMaleJournal article002007584410.1111/j.1540-8167.2006.00713.x0002449816000172-s2.0-3394720516845402Sanders, P. [0000-0003-3803-8429]