Key result
Bidirectional pulsed-field ablation effectively ablated myocardial cells and blocked electrical activity from the pulmonary vein to the atrium in minipigs without generating pulmonary vein stenosis.
Why the study?
Pulsed-field ablation had potential advantages in atrial fibrillation ablation, but the optimal parameters and targets remained to be confirmed.
Bidirectional pulsed-field ablation demonstrates selective efficacy for myocardial cells over smooth muscle cells and achieves safe, transmural pulmonary vein isolation in a preclinical swine model.
No takes yet. Share an insight, caveat, or question.
Does not support clinical use yet; hypothesis-generating for bidirectional pulsed-field ablation in pulmonary vein isolation.
Ye et al. (2021) studied Atrial fibrillation (n=3). Bidirectional pulsed-field ablation vs. Mono-polar pulses was evaluated on Ablation effect, calcium ion influx, Cx45 expression, surface morphological change, and electrical block. Bidirectional pulsed-field ablation effectively ablated myocardial cells and blocked electrical activity from the pulmonary vein to the atrium in minipigs without generating pulmonary vein stenosis.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: