Key result
CPVI eliminates RMPV potentials in ~84% of patients, with the rest requiring additional carina ablation.
Why the study?
Previous studies showed electrical connections between ipsilateral PVs, but the electrophysiological features of an RMPV originating from the RSPV remained to be characterized.
Population
118 AF patients with an identifiable RMPV on pre-procedural cardiac CTA
Comparison
CPVI with additional carina ablation if RMPV potentials persisted
Design
Prospective observational study
Follow-up
Mean 41 months
Authors
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Standard CPVI isolates most identifiable RMPVs; extends evidence of RSPV-RMPV connections but leaves ablation strategy open.
Cohort (n=118)
In patients with AF and an identifiable RMPV, RMPV potentials usually originate from the RSPV and are eliminated during standard CPVI, though a subset requires additional carina ablation for complete isolation.
Qiu et al. (2026) conducted a cohort in Atrial fibrillation (n=118). Circumferential pulmonary vein isolation (CPVI) was evaluated on Elimination of RMPV potentials during CPVI. During circumferential pulmonary vein isolation, right middle pulmonary vein potentials were eliminated in 83.9% of patients, whereas 16.1% required additional carina ablation for isolation.
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