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Table 2 Procedural data of each group

From: Clinical outcomes in patients with persistent atrial fibrillation after technologic advances including contact force-guided and ablation index-guided ablation

 

no-CF group

CF-only group

AI group

P-value

Anesthesia type

 None

9 (14.3%)

0 (0.0%)

0 (0.0%)

 < 0.001

 Deep sedation

54 (85.7%)

49 (100%)

61 (100%)

 

Ablation strategy

 PVI only (± CTI ablation)

18 (28.6%)

15 (30.6%)

36 (59.0%)

0.001

Additional substrate modification

45 (71.4%)

34 (69.4%)

25 (41.0%)

 

 LA roof linear

37 (58.7%)

34 (69.4%)

24 (39.3%)

0.005

 LA posteroinferior linear

1 (1.6%)

2 (4.1%)

8 (13.1%)

0.096

 Non-PV trigger

35 (55.6%)

16 (32.7%)

8 (13.1%)

 < 0.001

Non-PV trigger, details

MI (n = 11)

SVC (n = 2)

LAA (n = 3)

CS (n = 4)

LOM (n = 1)

Septum (n = 15)

MI (n = 12)

SVC (n = 2)

Septum (n = 1)

TA (n = 1)

MI (n = 1)

SVC (n = 2)

CS (n = 1)

Septum (n = 3)

GP (n = 4)

 

 CFAE

26 (41.3%)

0 (0%)

0 (0%)

 < 0.001

Procedural time

 Total procedure time (min)

340 ± 86

244 ± 51

188 ± 40

 < 0.001

  Total procedure time in a subgroup with patients receiving PVI only (± CTI ablation)

315 ± 76

244 ± 56

181 ± 42

 < 0.001

 Ablation time (min)

98 ± 29

91 ± 29

72 ± 30

 < 0.001

 Fluoroscopic time (min)

83 ± 50

26 ± 8

20 ± 10

 < 0.001

  1. PVI, pulmonary vein isolation; CTI, cavotricuspid isthmus; LA, left atrium; PV, pulmonary vein; MI, mitral isthmus; SVC, superior vena cava; LAA, left atrial appendage; CS, coronary sinus; TA, tricuspid annulus; LOM, ligament of Marshall; GP, ganglionated plexi; CFAE, complex fractionated atrial electrogram