Visualizing Localized Reentry With Ultra–High Density Mapping in Iatrogenic Atrial Tachycardia

Abstract

The activation pattern of LR is of small stable rotational activations (carousels), and this drove 30% (7/23) of our postablation atrial tachycardias. However, this appearance is most often pseudo-reentrant and must be differentiated by interpretation of electrograms in the candidate circuit and activation in the wider surrounding region.