Key result
TactiFlex SE shows similar in vitro lesion and steam pop characteristics to FlexAbility SE.
Why the study?
A novel contact force-sensing catheter with a mesh-shaped irrigation tip was developed for radiofrequency ablation, but its detailed lesion formation characteristics were unknown.
Does the TactiFlex SE catheter alter lesion formation characteristics or the incidence of steam pops compared to the FlexAbility SE catheter in an in vitro model?
Does the TactiFlex SE catheter alter lesion formation characteristics or the incidence of steam pops compared to the FlexAbility SE catheter in an in vitro model?
The novel TactiFlex SE catheter demonstrates similar in vitro lesion formation and safety characteristics to its predecessor, requiring careful contact force control (≤30 g) to safely create transmural lesions.
No takes yet. Share an insight, caveat, or question.
Caution warranted before clinical use of TactiFlex SE; leaves open translation of in vitro lesion safety to patients.
Matsumoto et al. (2023) studied Radiofrequency ablation. TactiFlex SE catheter vs. FlexAbility SE catheter was evaluated on Lesion formation, impedance changes, and steam pops characteristics. TactiFlex SE demonstrated similar lesion formation and steam pop characteristics to FlexAbility SE in an in vitro model, with 40 or 50 W and ≤30 g contact force required for safe transmural lesions.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: