A new approach for catheter ablation of atrial tachycardia following atrial fibrillation ablation

Abstract

The increased acquisition speed by AFocusII DL facilitated the reconstruction of the geometric chamber, and the generation of an isochronal activation map reduced processing time and fluoroscopy time per patient, together with the radiation exposure and patient radiation dose. A novel algorithm combining both conventional electrophysiology and a three-dimensional electroanatomic approach for rapid diagnosis, accurate mapping and ablation of iatrogenic atrial tachycardias showed high reproducibility and a satisfactory overall success rate.

Atrial Tachycardias Following Persistent Atrial Fibrillation Ablation: Predictors of Recurrence After the Repeat Ablation

“…Faustino et al observed in 40 patients presenting with AT after previous ablation for paroxysmal or persistent AF (using a stepwise approach) that of 75 tachycardias 48 were macroreentries and 27 were focal. 19 Rostock et al investigated 320 patients undergoing ablations for AT (following an ablation for persistent AF using a stepwise approach) and reported that 72% of ATs were reentrant, whereas 28% were classified as focal. 20 Predictors of recurrence were not assessed.…”

“…Faustino et al . observed in 40 patients presenting with AT after previous ablation for paroxysmal or persistent AF (using a stepwise approach) that of 75 tachycardias 48 were macroreentries and 27 were focal . Rostock et al .…”

Rapid Mapping of Right Atrial Tachycardia Using a New Multielectrode Basket Catheter

“…Because this was the first study investigating the clinical use of the new MBC, we enrolled only patients with right‐sided ATs to evaluate the safety of using the MBC. Previous studies have reported the utility of multielectrode catheters with NavX for activation mapping of left‐sided AT . In our opinion, rapid mapping with the new MBC might also be useful for understanding AT circuits in the left atrium.…”

“…Previous studies have reported the utility of multielectrode catheters with NavX for activation mapping of left-sided AT. [20][21][22][23] In our opinion, rapid mapping with the new MBC might also be useful for understanding AT circuits in the left atrium.…”