Methods
From July 2015 to August 2020, 111 patients underwent ablation of APs.
The dual chamber mappings were created in 50 patients [median age 15
(10-54), 32 male(64.0%)], while 61 patients underwent the
radiofrequency (RF) ablations with conventional single chamber 3D
mappings. The background characteristics and procedure details were
compared between the dual chamber mapping group and conventional single
chamber mapping group.