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Utility of Esophageal Temperature Monitoring During Pulmonary Vein Isolation for Atrial Fibrillation Using Duty‐Cycled Phased Radiofrequency Ablation

Esophageal Temperature Monitoring During PVAC Ablation. Introduction: A novel ablation system has been introduced for rapid treatment of atrial fibrillation (AF). This system delivers duty‐cycled phased radiofrequency (RF) energy via an over‐the‐wire catheter (PVAC®, Medtronic) to achieve pulmonary vein (PV) isolation. Lower power and depth control suggests that collateral damage might be minimized. However, no studies have investigated the potential for thermal effect and damage to the esophagus.