Why the study?
PV reconnection is frequent after PVI, and detecting it with CMR may help predict outcomes and guide redo procedures.
Does CMR scar imaging accurately predict the extent and location of pulmonary vein reconnection after catheter ablation for paroxysmal AF, and do catheter types affect ablation completeness?
Does CMR scar imaging accurately predict the extent and location of pulmonary vein reconnection after catheter ablation for paroxysmal AF, and do catheter types affect ablation completeness?
CMR scar imaging at 3 months post-ablation correlates with the overall extent of pulmonary vein reconnection but poorly predicts its exact location, while multielectrode circular catheters result in more complete ablation compared to single-electrode catheters.
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CMR scar imaging may estimate PV reconnection burden after PVI but not guide lesion-specific redo ablation; leaves open its role in routine AF recurrence management.
Jefairi et al. (2019) studied this question.
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