Is radiofrequency ablation of atrial fibrillation guided by initial impedance decrease feasible, efficacious, and safe?
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.
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.
Reichlin et al. (Thu,) studied this question.