Ablation
An ablation uses the same technique as an electrophysiology (EP)
study and is sometimes carried out at the same time.
Thin, flexible tubes called catheters are placed into one of
your veins or arteries, usually in your groin. The catheters are
used to find the area of heart tissue causing the rhythm problem.
Radiofrequency (hot) or cryo (cold) energy is then used to destroy
the affected area inside the heart.
Useful information
http://www.bhf.org.uk/heart-health/treatment/ablation.aspx