What question did this study set out to answer?

To evaluate the efficacy of pulsed-field ablation (PFA) for atrial tachycardia originating from Bachmann's bundle.

March 15, 2026Open Access

Pulsed-Field Ablation of Atrial Tachycardia Originating From Bachmann's Bundle Via Epicardial Approach

Key Points

To evaluate the efficacy of pulsed-field ablation (PFA) for atrial tachycardia originating from Bachmann's bundle.
Utilized pulsed-field ablation via an epicardial approach.
Compared outcomes with endocardial ablation cases.
Assessed the impact of epicardial fat and tissue thickness on lesion depth.
PFA successfully terminated atrial tachycardia in some cases.
Recurrence of atrial tachycardia was noted, linked to the limits of lesion depth.
Effectiveness of PFA may be reduced in thicker-walled tissues.

Abstract

PFA could terminate epicardial Bachmann's bundle-mediated AT when endocardial ablation fails, but recurrence may occur due to limited lesion depth influenced by epicardial fat and tissue thickness. This suggests that the efficacy of PFA in thick-walled tissues remains somewhat constrained.

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