Figure 2.

Local activation time (LAT) map of the same tachycardia during the second procedure, showing the same focus of the atrial tachycardia. At the site of earliest activation a fragmented signal was noted preceding the surface p-wave with 35 ms. The green dots mark the 14 places where ablation with pulsed field energy was performed. Lesion tag size was set at 6 mm, corresponding with lesion diameters of 7.2 ± 1.6 mm seen on histologic examination with the same energy settings.⁸