Follow-up data
Patients were followed up for 26.5 ± 4.1 months. Six patients (50%) required a redo procedure due to recurrence of atrial tachyarrhythmias 3 months or later after the AF ablation. Of them, 67% (4 patients) had reconnected PVs, for a total of 7 reconnected PVs out of the 24 checked during the redo procedures.
Reconnected and isolated PVs at the second ablation procedure showed similar degrees of wall thickness increase [median (IQR) WTI% increase: reconnected PVs = 5.71 (0.31-12.04) %; isolated PVs: = 4.51 (0.94- 12.07) %; p= 0.89] and muscular sleeve thickness reduction after the first ablation procedure [median (IQR) percentage reduction: reconnected PVs = 8.72 (0.3- 44.5) %; isolated PVs = 24.53 (0.5- 41.18) %; p= 0.58].