Post-ablation chest pain from pericarditis, vagal plexus thermal injury, gastroparesis, or local inflammation is a common occurrence in patients after radiofrequency (RF) catheter ablation of the left atrium for treatment atrial fibrillation (AF), with combined reported incidence 25% to 50% more. Active esophageal cooling has been have pleiotropic effects which may mitigate and reduce likelihoo...