Key result
In a 10-dog model, a multipolar microcatheter ablation system created narrower, more continuous, and better-anchored lesions compared to standard radiofrequency ablation.
Why the study?
Does a multipolar microcatheter ablation system improve lesion characteristics compared to standard radiofrequency ablation in the canine atrium?
Does a multipolar microcatheter ablation system improve lesion characteristics compared to standard radiofrequency ablation in the canine atrium?
In a canine model, multipolar microcatheter ablation creates narrower and more continuous lesions compared to standard radiofrequency ablation, with electrogram amplitude and pacing threshold serving as predictors of transmurality.
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Should not change clinical practice; leaves open translation of multipolar microcatheter lesion advantages to human atrial ablation.
Jumrussirikul et al. (2000) studied Right atrial ablation (n=10). Multipolar microcatheter (MICRO) ablation system vs. Pullback approach with standard radiofrequency ablation (target temperature 60 degrees C) was evaluated on Lesion characteristics (width, continuity, anchoring, length, transmurality). In a 10-dog model, a multipolar microcatheter ablation system created narrower, more continuous, and better-anchored lesions compared to standard radiofrequency ablation.
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