Figure
4. Epicardial mapping and ablation of an atrial tachycardia originating
from the Bachmann’s bundle
Biatrial epicardial activation mapping of an atrial tachycardia
appearing during the course of the stepwise endo-/epicardial ablation,
antero-posterior view. Note that the site of earliest activation (red
spot) is located epicardially, in the anatomical region of the
Bachmann’s bundle (A); radiofrequency energy delivery in that site
resulted in atrial tachycardia termination (B).