Publications by authors named "Gen Fujiwara"
Peak frequency drop: a novel intraprocedural parameter predicting acute conduction gaps post-pulmonary vein isolation.
J Interv Card Electrophysiol
February 2025
Background: The identification of potential gap sites after pulmonary vein isolation (PVI) and prevention of these warning points during ablation are crucial. We evaluated the changes in peak frequency (PF) on electrograms and examined the relationship between its value and the residual pulmonary vein (PV) gap after PVI.
Methods: We included patients with a PV gap after PVI with a power setting of 50 W using a novel irrigated-tip catheter (TactiFlex, Abbott).
Article Synopsis
- The study evaluated ice formation on the surfaces of two types of cryoballoons during cryoablation, specifically a standard cryoballoon (SCB) and a novel cryoballoon (NCB).
- Ice formation was found to be significantly greater on the lower side of the cryoballoons compared to the upper side, with the NCB showing a visibly larger area of ice formation.
- These findings suggest that the increased ice formation on the lower side and proximal hemisphere could enhance ablation effectiveness on the left atrial posterior wall during cryoballoon procedures.