Dual-site atrial lead configuration restores intra-atrial synchrony in sinus node isolation owing to intra-atrial conduction block after extensive atrial ablation

Q: What does this research mean for the field?

A dual-site atrial lead configuration restores intra-atrial synchrony in sinus node isolation caused by intra-atrial conduction block following extensive atrial ablation. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

Akira Shinoda; Tetsuro Takase; Masahiro Ishikura; Yoshio Furukawa

doi:10.1016/j.hrcr.2026.07.007

July 1, 2026HeartRhythm Case ReportsOpen Access

Dual-site atrial lead configuration restores intra-atrial synchrony in sinus node isolation owing to intra-atrial conduction block after extensive atrial ablation

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Why the study?

Advanced interatrial conduction block can follow extensive atrial ablation and may lead to reduced left atrial contractility, increased atrial fibrillation, and functional complete atrioventricular block.

Does dual-site atrial lead configuration restore intra-atrial synchrony in patients with sinus node isolation owing to intra-atrial conduction block after extensive atrial ablation?

Key Points

To describe the restoration of intra-atrial synchrony using a dual-site atrial lead configuration in a patient with sinus node isolation caused by post-ablation interatrial conduction block.
Evaluated a patient presenting with advanced interatrial conduction block and sinus node isolation following extensive atrial ablation.
Implemented a dual-site atrial lead pacing configuration to bypass intra-atrial conduction delay and coordinate atrial activation.
Advanced interatrial conduction block was associated with impaired left atrial contractility and risk of functional complete atrioventricular block from interrupted sinus impulse propagation.
Dual-site atrial lead pacing successfully bridged intra-atrial conduction block and restored intra-atrial electrical synchrony.

Structured PICO

Does dual-site atrial lead configuration restore intra-atrial synchrony in patients with sinus node isolation owing to intra-atrial conduction block after extensive atrial ablation?

P

Population

Patients with sinus node isolation owing to intra-atrial conduction block after extensive atrial ablation

I

Intervention

Dual-site atrial lead configuration

O

Outcome

Restoration of intra-atrial synchronysurrogate

Implication

Dual-site atrial lead configuration may restore intra-atrial synchrony in patients with sinus node isolation due to intra-atrial conduction block.

Abstract

Interatrial conduction block (IACB) can occur after open-heart surgery, in patients with cardiomyopathy, or following extensive atrial ablation.1–3 Advanced IACB may lead to reduced left atrial contractility, an increased incidence of atrial fibrillation, and functional complete atrioventricular block (CAVB) due to impaired conduction of sinus impulses to the atrioventricular (AV) node.2–4

Discussion

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Cite This Study

Shinoda et al. (2026) studied this question.

synapsesocial.com/papers/6a86bc6a48ef9afcd2a23b0c https://doi.org/10.1016/j.hrcr.2026.07.007

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Dual-site atrial lead configuration restores intra-atrial synchrony in sinus node isolation owing to intra-atrial conduction block after extensive atrial ablation

Key Points

Structured PICO

Implication

Abstract

Discussion

Cite This Study

Dual-site atrial lead configuration restores intra-atrial synchrony in sinus node isolation owing to intra-atrial conduction block after extensive atrial ablation

Key Points

Structured PICO

Implication

Abstract

Discussion

Cite This Study

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