Bachmann’s Bundle Modification in Addition to Circumferential Pulmonary Vein Isolation for Atrial Fibrillation: A Novel Ablation Strategy
Table 1
Baseline characteristics of patients with persistent AF.
Baseline characteristics
Nonmatched groups
Matched groups
CPVI (n = 127)
CPVI-BB (n = 119)
value
CPVI (n = 84)
CPVI-BB (n = 84)
value
Age, year
57.17 ± 9.53
57.48 ± 9.40
0.800
57.23 ± 9.45
57.64 ± 9.97
0.781
Male
98 (77.2%)
101 (84.9%)
0.124
70 (83.3%)
69 (82.1%)
0.838
BMI, kg/m2
26.38 ± 3.18
25.56 ± 3.16
0.042
26.09 ± 3.32
26.08 ± 3.26
0.994
Duration of AF
10 (2–23)
14 (5–24)
0.063
10 (2–20)
10 (4–24)
0.217
Long-standing AF
52 (41.9%)
60 (50.4%)
0.185
32 (38.1%)
38 (45.2%)
0.348
HBP
60 (47.2%)
50 (42.0%)
0.410
34 (40.5%)
42 (50.0%)
0.215
DM
21 (16.5%)
17 (14.3%)
0.626
11 (13.1%)
13 (15.5%)
0.659
CAD
20 (15.7%)
9 (7.6%)
0.047
11 (13.1%)
6 (7.1%)
0.201
History of stroke
17 (13.4%)
20 (16.8%)
0.453
13 (15.5%)
11 (13.1%)
0.659
Heart failure
14 (11.0%)
8 (6.7%)
0.237
6 (7.1%)
6 (7.1%)
1.000
Smoking
45 (35.4%)
49 (41.2%)
0.354
35 (41.7%)
36 (42.9%)
0.876
Drinking
36 (28.3%)
45 (37.8%)
0.114
32 (38.1%)
29 (34.5%)
0.630
CHA2DS2-VASc score
2 (2–3)
2 (1–3)
0.143
2 (1–3)
2 (1–3)
0.718
LVEF, %
56.83 ± 7.86
56.08 ± 7.54
0.451
56.63 ± 7.63
56.38 ± 7.28
0.828
LAD, mm
41.88 ± 4.54
42.26 ± 4.84
0.527
42.18 ± 4.98
42.29 ± 5.22
0.892
NT-pro BNP
714 (425–905)
834 (479–1004)
0.274
736 (383–900)
814 (530–987)
0.210
Total LA area, cm2
238.68 ± 38.35
244.10 ± 38.51
0.356
243.17 ± 40.24
245.08 ± 38.63
0.854
Scar area/total LA area, %
1.58 ± 1.06
1.84 ± 1.80
0.543
1.44 ± 1.22
1.76 ± 1.38
0.76
Values are reported as mean ± standard deviation or n (%). BMI: body mass index; DM: diabetes mellitus; CAD: coronary artery disease; LVEF: left ventricular ejection fraction; LAD: left atrium diameter; BNP: brain natriuretic peptide; LA: left atrial.
