Key result
Pulmonary vein corrected ostial diameter predicted a balloon nadir temperature < -51ºC when using 23-mm cryoballoons (OR 1.4; p=0.004), while ostium oval shape and location predicted it for 28-mm.
Why the study?
Is pulmonary vein anatomy associated with cryo kinetics during cryoballoon ablation for atrial fibrillation?
Population
60 consecutive patients undergoing cryoballoon ablation for atrial fibrillation
Design
Cohort
Authors
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PV anatomy was associated with cryo kinetics in CB ablation; hypothesis-generating for anatomy-guided protocols.
Observational (n=60)
Is pulmonary vein anatomy associated with cryo kinetics during cryoballoon ablation for atrial fibrillation?
Odds Ratio: 1.4
p-value: p=0.004
Pre-procedural MDCT evaluation of pulmonary vein anatomy can predict cryo kinetics during cryoballoon ablation for atrial fibrillation, potentially guiding balloon size selection and procedural strategy.
Chen et al. (2018) conducted an observational in atrial fibrillation (n=60). Pulmonary vein anatomy was evaluated on Balloon nadir temperature < -51ºC (OR 1.4, p=0.004). Pulmonary vein corrected ostial diameter predicted a balloon nadir temperature < -51ºC when using 23-mm cryoballoons (OR 1.4; p=0.004), while ostium oval shape and location predicted it for 28-mm.