P342Time-to-isolation-guided cryoballoon pulmonary vein isolation reduces esophageal and mediastinal alterations detected by endoscopic ultrasound

Background Pulmonary vein isolation (PVI) is recommended for treatment of symptomatic atrial fibrillation. Cryoballoon ablation is an emerging safe and efficient technique for achieving PVI. Nevertheless, structural alterations of the mediastinum and/or the oesophagus, which seem to be associated with an increased risk of the lethal complication of an atrio-oesophageal fistula, have been described. Purpose MADE-PVI (Mediastino-oesophageal...