Key result
Focal PFA near pacemaker leads induces transient capture loss and oversensing that normalize within 1 hour.
Why the study?
Pulsed field ablation is considered safe in patients with cardiac implantable electronic devices, but intraprocedural lead interactions remain undercharacterized.
Does focal pulsed field ablation cause lead-energy interactions in patients with cardiac implantable electronic devices?
Population
A 75-year-old woman with a dual-chamber pacemaker and recurrent atrial tachycardia
Design
Case report
Follow-up
1 h
Authors
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Merits vigilance for lead interactions during PFA in CIED patients; leaves open incidence, mechanisms, and need for dedicated studies.
Case Report (n=1)
Does focal pulsed field ablation cause lead-energy interactions in patients with cardiac implantable electronic devices?
Focal pulsed field ablation near indwelling pacemaker leads can cause transient, reversible loss of capture and threshold elevation, highlighting the need for real-time device monitoring.
Gonzalez et al. (2026) conducted a case report in Recurrent atrial tachycardia (n=1). Focal pulsed field ablation (PFA) was evaluated. Focal pulsed field ablation near an indwelling pacemaker lead caused transient loss of atrial capture, threshold elevation, and T-wave oversensing that normalized within 1 hour.
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