Patient undergoing first RF ablation for sympomatic paroxysmal atrial fibrillation will be enrolled. ICE visualization of PV antra before and after PV deconnection (electrophysiological endpoint). Changes in echogenicity as documented by ICE will be evaluated by a dedicated software and correlated to long term recurrences
To test the hypothesis that structural changes documented by ICE after pulmonary vein deconnection by RF can predict AF recurrences