New strategies and technologies for ablation of atrial fibrillation : Where do we go?

Herz
A MetznerK-H Kuck

Abstract

Catheter-based ablation is an established treatment option for patients with symptomatic atrial fibrillation (AF). Pulmonary vein isolation is the established cornerstone of all ablation strategies. However, the rate of electrical reconduction of previously isolated pulmonary veins is high and associated with recurrence of AF. Novel and innovative mapping and ablation systems are being developed or are under clinical evaluation aiming for higher durability of pulmonary vein isolation. Additional ablation strategies for patients with recurrence of AF despite persistent isolation of the pulmonary veins are under evaluation. These ablation strategies include ablation of complex fractionated atrial electrograms, linear lesions, rotors or drivers, fibrotic areas or ablation of extrapulmonary triggers. The true clinical benefit of these additional ablation strategies can only be assessed if the pulmonary veins are persistently isolated.

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