Optimal treatment of biatrial tachycardia diagnosed by one-chamber
mapping within an ultrahigh-resolution mapping system
Biatrial tachycardia (BiAT) is a rare arrhythmia, and identification of
the re-entry circuit is often complicated. 1 By
creating an activation map of the right atrium, left atrium, and
coronary sinus as a single chamber, the Lumipoint module of the Rhythmia
mapping system can be used in real time to make an accurate diagnosis.
2 Ablation of the Bachmann bundle is a feasible way to
terminate BiAT, but might cause interatrial conduction delay and
electrical isolation of the left atrial appendage. Chemical ablation
into the vein of Marshall might be the more beneficial treatment,
avoiding any potential interatrial conduction delay.