Prospective Characterization of Catheter–Tissue Contact Force at Different Anatomic Sites During Antral Pulmonary Vein Isolation
Population
22 patients undergoing antral pulmonary vein (PV) isolation for atrial fibrillation.
Design
Cohort, blinded fashion
Authors
Discussion
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Member takes
Implication
May reduce lesion durability at carina during PVI; leaves open whether site-specific force targets improve outcomes.
Structured PICO
P
Population
22 patients undergoing antral pulmonary vein (PV) isolation for atrial fibrillation.
I
Intervention
Antral pulmonary vein isolation using a novel contact force (CF)-sensing ablation catheter.
O
Outcome
Average contact force (CF) and force-time integral at different anatomic sites (carina, superior, inferior, anterior, and posterior quadrants of left and right PV antra).surrogate
Catheter-tissue contact force varies significantly by anatomic site during pulmonary vein isolation, with the lowest forces typically observed at the carina, which may impact ablation efficacy.
Cite This Study
Kumar et al. (2012) studied this question.