2023年6月26日 · Background: Wide antral circumferential ablation (WACA) in comparison to ostial pulmonary vein (PV) isolation (PVI) has been attributed with improved rhythm outcome. We investigated the feasibility, lesion formation, and rhythm outcome of WACA-PVI in comparison to ostial-PVI using pulsed field ablation (PFA).

The present study demonstrates for the first‐time feasibility of a WACA of ipsilateral PVs with LB as an ablation strategy and directly compares single procedural effectiveness and safety of WACA PVI between LB and RF ablation modalities.

Definitions PVI – segmental ostial isolation of individual veins guided by activation on PV mapping catheter WACA – Wide area ablation to enclose veins as pairs (with/without ablation between veins). May be guided by PV mapping catheter

Wide antral circumferential ablation (WACA) in comparison to ostial pulmonary vein (PV) isolation (PVI) has been attributed with improved rhythm outcome. We investigated the feasibility, lesion formation, and rhythm outcome of WACA-PVI in comparison …

2014年1月2日 · Our primary finding is that PVI performed with a wide antral approach is more effective than ostial PVI in achieving freedom from total atrial tachyarrhythmia recurrence at long-term follow-up, which is driven by a striking reduction of AF recurrences.

In AI-guided PVI of PAF, AI/wall thickness by normalizing myocardial thickness variation along the WACA circle was a strong predictor of gap formation, with a target of 195.6 au/mm appearing suitable for effective ablation.

2007年10月24日 · Abstract Background: The wide area circumferential ablation (WACA) approach to atrial fibrillation is thought to result in ‘substrate modification’ perhaps related to autonomic denervation. We examined this prospectively by comparing WACA and segmental pulmonary vein isolation (PVI) using noninvasive surrogate markers.

2023年2月8日 · Aims: The cornerstone of pulmonary vein (PV) isolation (PVI) is a wide-area circumferential ablation (WACA) resulting in an antral PVI area. Pulsed-field ablation (PFA) is a new nonthermal 'single-shot' PVI technique resulting in …

2018年5月1日 · The so-called “wide antral circumferential ablation” (WACA) technique, using radiofrequency ablation to perform circular lesions encompassing the ipsilateral PV away from the ostia, is used frequently, and has been shown to be more effective than ostial PVI [3], [4].

2023年6月26日 · We investigated the feasibility, lesion formation, and rhythm outcome of WACA-PVI in comparison to ostial-PVI using pulsed field ablation (PFA).