Validation Durability Adenosine Effect in Verification Pulmonary Vein Isolation

In the adenosine arm, 25 patients will be randomized to received 2 doses of adenosine 12 mg IV, 5 minutes apart after pulmonary vein isolation. During this time, will monitor for pulmonary vein reconnection, second dose of adenosine will be given only if no reconnection after initial dose. In the observation arm, 25 patients will be randomized to 10 minute period of observation for pulmonary vein reconnection after documentation of pulmonary vein isolation.