Table 2

Predictors of ablation failure (n = 40)

VariablesUnivariate
Multivariate
OR (95% CI)P valueOR (95% CI)P value
Age >65 years0.78 (0.34 – 1.63)0.53
Female0.95 (0.41 – 2.05)0.91
Body mass index >25 kg/m21.37 (0.70 – 2.71)0.36
Long-standing persistent AF2.85 (1.14 – 12.6)0.0492.16 (0.49 – 15.77)0.36
Duration of AF of >5 years1.35 (0.69 – 2.85)0.39
Number of failed AADs of ≥21.49 (0.67 – 4.07)0.37
Hypertension1.51 (0.78 – 3.06)0.23
Diabetes1.13 (0.52 – 2.35)0.75
Structural heart disease0.77 (0.17 – 2.27)0.66
Left ventricular ejection fraction <50%1.15 (0.53 – 2.41)0.7
Left atrial diameter >45 mm1.37 (0.71 – 2.70)0.35
Left atrial volume >90 mL1.46 (0.76 – 2.89)0.26
Mean diameter of the PVs >20mm0.92 (0.43 – 1.86)0.82
Atypical PV anatomy1.07 (0.45 – 2.37)0.87
Interleukin-6 > 7.0 pg/mL1.25 (0.65 – 2.44)0.51
Time to early recurrence of AF of ≥10 days0.87 (0.43 – 1.69)0.69
Number of electrical cardiversions of ≥312.2 (4.24 – 60.67)<0.000111.32 (3.83 – 58.22)0.0019
VariablesUnivariate
Multivariate
OR (95% CI)P valueOR (95% CI)P value
Age >65 years0.78 (0.34 – 1.63)0.53
Female0.95 (0.41 – 2.05)0.91
Body mass index >25 kg/m21.37 (0.70 – 2.71)0.36
Long-standing persistent AF2.85 (1.14 – 12.6)0.0492.16 (0.49 – 15.77)0.36
Duration of AF of >5 years1.35 (0.69 – 2.85)0.39
Number of failed AADs of ≥21.49 (0.67 – 4.07)0.37
Hypertension1.51 (0.78 – 3.06)0.23
Diabetes1.13 (0.52 – 2.35)0.75
Structural heart disease0.77 (0.17 – 2.27)0.66
Left ventricular ejection fraction <50%1.15 (0.53 – 2.41)0.7
Left atrial diameter >45 mm1.37 (0.71 – 2.70)0.35
Left atrial volume >90 mL1.46 (0.76 – 2.89)0.26
Mean diameter of the PVs >20mm0.92 (0.43 – 1.86)0.82
Atypical PV anatomy1.07 (0.45 – 2.37)0.87
Interleukin-6 > 7.0 pg/mL1.25 (0.65 – 2.44)0.51
Time to early recurrence of AF of ≥10 days0.87 (0.43 – 1.69)0.69
Number of electrical cardiversions of ≥312.2 (4.24 – 60.67)<0.000111.32 (3.83 – 58.22)0.0019

OR, odds ratio; CI, confidence interval; AF, atrial fibrillation; AADs, antiarrhythmic drugs; PV, pulmonary vein.

Table 2

Predictors of ablation failure (n = 40)

VariablesUnivariate
Multivariate
OR (95% CI)P valueOR (95% CI)P value
Age >65 years0.78 (0.34 – 1.63)0.53
Female0.95 (0.41 – 2.05)0.91
Body mass index >25 kg/m21.37 (0.70 – 2.71)0.36
Long-standing persistent AF2.85 (1.14 – 12.6)0.0492.16 (0.49 – 15.77)0.36
Duration of AF of >5 years1.35 (0.69 – 2.85)0.39
Number of failed AADs of ≥21.49 (0.67 – 4.07)0.37
Hypertension1.51 (0.78 – 3.06)0.23
Diabetes1.13 (0.52 – 2.35)0.75
Structural heart disease0.77 (0.17 – 2.27)0.66
Left ventricular ejection fraction <50%1.15 (0.53 – 2.41)0.7
Left atrial diameter >45 mm1.37 (0.71 – 2.70)0.35
Left atrial volume >90 mL1.46 (0.76 – 2.89)0.26
Mean diameter of the PVs >20mm0.92 (0.43 – 1.86)0.82
Atypical PV anatomy1.07 (0.45 – 2.37)0.87
Interleukin-6 > 7.0 pg/mL1.25 (0.65 – 2.44)0.51
Time to early recurrence of AF of ≥10 days0.87 (0.43 – 1.69)0.69
Number of electrical cardiversions of ≥312.2 (4.24 – 60.67)<0.000111.32 (3.83 – 58.22)0.0019
VariablesUnivariate
Multivariate
OR (95% CI)P valueOR (95% CI)P value
Age >65 years0.78 (0.34 – 1.63)0.53
Female0.95 (0.41 – 2.05)0.91
Body mass index >25 kg/m21.37 (0.70 – 2.71)0.36
Long-standing persistent AF2.85 (1.14 – 12.6)0.0492.16 (0.49 – 15.77)0.36
Duration of AF of >5 years1.35 (0.69 – 2.85)0.39
Number of failed AADs of ≥21.49 (0.67 – 4.07)0.37
Hypertension1.51 (0.78 – 3.06)0.23
Diabetes1.13 (0.52 – 2.35)0.75
Structural heart disease0.77 (0.17 – 2.27)0.66
Left ventricular ejection fraction <50%1.15 (0.53 – 2.41)0.7
Left atrial diameter >45 mm1.37 (0.71 – 2.70)0.35
Left atrial volume >90 mL1.46 (0.76 – 2.89)0.26
Mean diameter of the PVs >20mm0.92 (0.43 – 1.86)0.82
Atypical PV anatomy1.07 (0.45 – 2.37)0.87
Interleukin-6 > 7.0 pg/mL1.25 (0.65 – 2.44)0.51
Time to early recurrence of AF of ≥10 days0.87 (0.43 – 1.69)0.69
Number of electrical cardiversions of ≥312.2 (4.24 – 60.67)<0.000111.32 (3.83 – 58.22)0.0019

OR, odds ratio; CI, confidence interval; AF, atrial fibrillation; AADs, antiarrhythmic drugs; PV, pulmonary vein.

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