What is ablation?
How performed?
(Link leads to a complication.)
I had an ablation done on my heart about 10 years ago for Premature Ventricular Contractions (PVCs). The electrophysicist ran a catheter from my groin up into my heart and basically cauterized the exact location that was the source of the PVCs. He used both cold and heat to do the job. It was resoundingly successful.