Group A Group B Group C Group D p p
n=336
n=30
n=32
n=4
Group A vs. B+C Group B vs. C
AF/AT recurrence
After the initial ablation 64 (19) 17 (57) 19 (59) 4 (100) <0.0001 0.83
After the last ablation 24 (7) 9 (30) 12 (38) 4 (100) <0.0001 0.53
Cardiac rhythm at final follow up
Antiarrhythmic drugs 16 (5) 4 (13) 3 (9) 2 (50) 0.043 0.70
Sinus rhythm or paced rhythm 332 (99) 25 (83) 29 (91) 1 (25) <0.0001 0.47
Death
All-cause death 6 (2) 1 (3) 2 (6) 1 (25) 0.15 1.00
Cardiovascular death 2 (1) 1 (3) 1 (3) 1 (25) 0.12 1.00
Repeat ablation
≥ 1 repeat ablation 46 (14) 14 (47) 9 (28) 2 (50) <0.0001 0.13
Number of ablation sessions 1.2 ± 0.4 1.5 ± 0.6 1.4 ± 0.8 1.5 ± 0.6 0.001 0.47
Ablation procedures throughout all ablation sessions
LVA ablation 7 (2) 30 (100) 5 (16) 0 (0) <0.0001 <0.0001
Ablation for ATs except for common flutter 8 (2) 11 (37) 5 (16) 0 (0) <0.0001 0.058
Ablation for non-PV, non-SVC trigger 22 (7) 2 (7) 9 (28) 3 (75) 0.003 0.044
SVC isolation 36 (11) 7 (23) 6 (19) 2 (50) 0.024 0.66
Roof line 11 (3) 17 (57) 3 (9) 2 (50) <0.0001 <0.0001
Bottom line 7 (2) 11 (37) 3 (9) 2 (50) <0.0001 0.015
Anterior-septal mitral line 1 (0) 11 (37) 1 (3) 0 (0) <0.0001 0.001
Lateral mitral line 0 (0) 4 (13) 1 (3) 0 (0) <0.0001 0.19
Cavo-tricuspid isthmus line 55 (16) 14 (47) 12 (38) 3 (75) <0.0001 0.47