In the United States, the options currently available for cardiac ablation use thermal mechanisms to ablate tissue and cause cell death. Radiofrequency ablation (RFA) treatment uses energy to heat the tissue until it dies, resulting in its inability to transmit electrical signals that trigger arrhythmias. Cryoballoon ablation (CBA) uses a super-cooled balloon at the end of a catheter to freeze the tissue for the same result. Thermal methods for ablation have been successfully used for years; however, these methods carry uncommon yet serious risks.
