January 15, 2015

Feasibility, Efficacy, and Safety of Radiofrequency Ablation of Atrial Fibrillation Guided by Monitoring of the Initial Impedance Decrease as a Surrogate of Catheter Contact

Structured PICO

Is radiofrequency ablation of atrial fibrillation guided by initial impedance decrease feasible, efficacious, and safe?

Population

Patients with atrial fibrillation undergoing radiofrequency ablation

Intervention

Pulmonary vein isolation (PVI) guided by monitoring of the initial impedance decrease as a surrogate of catheter contact

Outcome

Feasibility (PVI concurrent with or before completion of the ablation ring), single procedure efficacy, and near-term complications

PVI guided by initial impedance decrease is feasible and efficacious, but near-term complications suggest a need for reduced RF-power and duration to prevent excessively deep lesions.

Abstract

PVI guided by initial impedance decrease is feasible and results in PVI concurrent with or before completion of the ablation ring in 94% of patients. Single procedure efficacy after one year of follow-up was 84%. Near-term complications suggest that deeper lesions are created, indicating that further reduction of RF-power and duration is warranted.

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Cite This Study

Reichlin et al. (Thu,) studied this question.

synapsesocial.com/papers/69d576a1c23ff40c2825df6e https://doi.org/https://doi.org/10.1111/jce.12621

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