“…In the literature, complications of RF AP ablations were not rare and mainly reported for AS location [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] despite a trend for an actual lower risk [31] , [32] , [33] , [34] . In the study of Shaffer [12] in children, inadvertent atrioventricular block was related to the ablation anatomic site: (2.7%) anteroseptal, (10.4%) midseptal, and (1.0%) right posteroseptal sites (P = 0.0007 for anteroseptal, P = 0.0001 for midseptal, and P = 0.17 for right posteroseptal versus left septal sites).…”