When it comes to ablations, you really have to do your homework on who, how, when, where, etc. I am still contemplating that option also. There's the radio-frequency type and the cryo type which involves freezing the heart tissue. And there are other methods as well. So your cardiologist or electrophysiologist could make suggestions as to which procedure would best fit your particular situation.
You doctor is talking about a ablation procedure which is widely used (it is invasive, a surgery vai catheters through the arteries).
See:
http://www.medhelp.org/search?query=ablation and read through the posts, you can also do a search on the web for "heart ablation" to get some general descriptions.
Ablation is a subject frequently discussed on this community.