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Table 1 Patient characteristics between the success group and recurrence group

From: Impact of baseline impedance of pulmonary vein antrum on success of catheter ablation for paroxysmal atrial fibrillation guided by ablation index

 

Success group

n = 83

Recurrence group

N = 18

P value

Age, years

61.4 ± 8.5

63.2 ± 8.5

0.40

Male (%)

52 (62.7)

7 (38.9)

0.06

PAF Duration, years

2.9 ± 2.5

4.7 ± 4.7

0.13

BMI (kg/m2)

25.1 ± 2.6

24.8 ± 3.0

0.70

CHA2DS2-VASc score

1.2 ± 0.9

1.8 ± 1.3

0.07

LVEF (%)

58.0 ± 2.5

57.8 ± 2.0

0.76

Left atrial diameter, mm

38.0 ± 4.7

38.9 ± 4.4

0.45

Hypertension, n (%)

18 (21.7%)

4 (22.2%)

0.96

Coronary disease, n (%)

6 (7.2%)

3 (16.7%)

0.414

Diabetes mellitus, n (%)

6 (7.2%)

3 (16.7%)

0.20

AI

421.4 ± 7.6

417.6 ± 6.7

0.06

Baseline impedance (Ω)

122.9 ± 9.4

130.6 ± 8.9

< 0.01

Impedance drop (Ω)

10.8 ± 1.4

10.5 ± 1.3

0.41

Ratio of impedance drop (%)

8.8 ± 1.4

8.1 ± 1.2

0.03

First-pass PVI, n (%)

151 (91.0)

28 (77.8)

0.03

Number of ablation points

74.1 ± 7.7

76.4 ± 6.7

0.24