All ATs (n = 27) CS-GCV (n = 6) VOM (n = 4) BB (n = 6) SPB (n = 4) FO (n = 2) Low RA (n = 5)
Perimitral futter 15 (55) 6 (100) 3 (75) 4 (67) 0 (0) 2 (100) 0 (0)
Roof-dependent flutter 7 (26) 0 (0) 1 (25) 2 (33) 4 (100) 0 (0) 0 (0)
CTI-dependent flutter 5 (19) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 5 (100)
Missing TCL, ms 67 ± 29 67 ± 26 83 ± 33 49 ± 25 44 ± 17 112 ± 13 71 ± 31
Distance BT to collision, mm
24 [19-40] 18 [17-22] 30 [19-41] 28 [23-42] 25 [23-50] 52 [45-59] 20 [19-38]
Epicardial bypass velocity, cm/s
49 [29-63] 26 [21-49] 44 [20-57] 73 [52-123] 82 [46-112] 46 [44-49] 36 [27-57]
First 10 ms activation area, cm2 2.3 ± 1.5 2.8 ± 2.0 1.8 ± 1.0 2.7 ± 1.2 2.3 ± 2.0 2.0 ± 1.6 2.0 ± 1.3
”rS” electrogram at BT sites 17 (63) 4 (67) 3 (75) 3 (50) 3 (75) 2 (100) 2 (40)
RF application time, min
20 [15-45] 16 [11-31] 29 [17-47] 25 [14-37] 42 [21-61] 12 [8-16] 41 [20-50]
Pseudo-focal ATs termination 25 (93) 5 (83) 4 (100) 6 (100) 4 (100) 2 (100) 4 (80)
At the anatomical isthmus 24/26 5/6 3/3 6/6 4/4 2/2 4/5
At the breakthrough site 1/6 0/0 1/1 0/2 0/0 0/0 0/3
Arrhythmia recurrence 9 (33) 2 (33) 2 (50) 1 (17) 2 (50) 0 (0) 2 (40)