Key result
Bachmann bundle pacing restores interatrial and AV synchrony in a sinus node dysfunction case.
Why the study?
Does Bachmann bundle pacing combined with left bundle branch pacing restore physiologic atrial activation in a patient with sinus node dysfunction and paroxysmal atrial fibrillation?
Case Report (n=1)
Does Bachmann bundle pacing combined with left bundle branch pacing restore physiologic atrial activation in a patient with sinus node dysfunction and paroxysmal atrial fibrillation?
Bachmann bundle pacing combined with left bundle branch pacing successfully restored interatrial and atrioventricular synchrony in a patient with sinus node dysfunction.
Answers are grounded in this paper and cite their sources.
Hypothesis-generating for Bachmann bundle pacing in sinus node dysfunction; prospective trials needed before clinical adoption.
CASE SUMMARY: Capturing intrinsic interatrial conduction with Bachmann bundle (BB) pacing is known as a more physiological atrial pacing strategy than conventional right atrial appendage pacing. We present a 74-year-old man with sinus node dysfunction and paroxysmal atrial fibrillation who underwent dual-chamber pacemaker implantation, incorporating BB and left bundle branch ventricular pacing. Interatrial and atrioventricular synchrony was achieved with a shorter P-wave duration and normalization of the PR interval. TAKE-HOME MESSAGE: BB pacing may restore physiologic atrial activation by engaging the preferential interatrial conduction pathway and may be beneficial in patients with sinus node dysfunction and atrial arrhythmias.
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Singh et al. (2026) conducted a case report in Sinus node dysfunction and paroxysmal atrial fibrillation (n=1). Bachmann bundle pacing and left bundle branch ventricular pacing was evaluated on Interatrial and atrioventricular synchrony (P-wave duration and PR interval). Bachmann bundle pacing achieved interatrial and atrioventricular synchrony with a shorter P-wave duration and normalization of the PR interval in a patient with sinus node dysfunction.
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