What question did this study set out to answer?

The research aims to identify and describe the occurrence of irreversible heart block following CTI ablation.

March 7, 2026Open Access

Permanent Heart Block Complicating Pulsed-Field Ablation of the Cavotricuspid Isthmus

Key Result

Pulsed-field ablation of the cavotricuspid isthmus using a pentaspline catheter can rarely cause irreversible permanent heart block.

Key Points

The research aims to identify and describe the occurrence of irreversible heart block following CTI ablation.
Case report on CTI ablation using a pentaspline pulsed-field catheter.
Assessment of patient outcomes post-procedure.
Evaluation of complications related to the ablation process.
Documented case of irreversible heart block after pulsed-field ablation.
Identified heart block as a novel and rare complication associated with this procedure.

Structured PICO

Population

Patients undergoing cavotricuspid isthmus (CTI) ablation

Intervention

Pulsed-field ablation with a pentaspline pulsed-field catheter

Outcome

Irreversible heart blocksafety

Identifies irreversible heart block as a novel, rare complication of CTI ablation using a pentaspline pulsed-field catheter.

Main Result

Absolute Event Rate: 0% vs 0%

Abstract

Irreversible heart block is a novel, albeit rare, complication of CTI ablation with a pentaspline pulsed-field catheter.

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Cite This Study

Gao et al. (Sun,) reported a other. Pulsed-field ablation of the cavotricuspid isthmus using a pentaspline catheter can rarely cause irreversible permanent heart block.

synapsesocial.com/papers/69abc0de5af8044f7a4e979f https://doi.org/https://doi.org/10.1016/j.jaccas.2026.107167