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Table 2 Characteristics of patients with and without atrial fibrillation recurrence after ablation

From: Predictive value of pre-procedural autoantibodies against M2-muscarinic acetylcholine receptor for recurrence of atrial fibrillation one year after radiofrequency catheter ablation

Variables

No recurrence (n = 51)

AF recurrence (n = 25)

p value

Age (years)

65 ± 9

66 ± 8

0.728

Gender (male)

26 (51.0%)

13 (52.0%)

0.933

Body mass index (kg/m2)

25.74 ± 3.46

26.13 ± 3.65

0.710

Smoking (%)

21 (41.2%)

7 (28.0%)

0.263

Persistent atrial fibrillation (%)

14 (27.5%)

19 (76.0%)

< 0.001

Duration of atrial fibrillation (months)

24 ± 5

60 ± 15

0.090

Comorbidity

   

 Hypertension (%)

26 (51.0%)

11 (44.0%)

0.567

 Diabetes mellitus (%)

13 (25.5%)

9 (36.0%)

0.343

 Coronary artery disease (%)

5 (9.8%)

4 (16.0%)

0.432

Medications

   

 Statins

22 (43.1%)

12 (48.0%)

0.689

 ACEI/ARB

40 (78.4%)

18 (72.0%)

0.536

Renal function

   

 Blood urea nitrogen (mmol/L)

5.67 ± 1.60

5.43 ± 1.87

0.630

 Creatinine (μmol/L)

77.58 ± 16.81

79.75 ± 8.85

0.526

 Creatinine clearance (mL/min)

83.12 ± 28.23

79.06 ± 22.86

0.616

Echocardiographic data

   

 Left atrial diameter (mm)

39.0 ± 3.5

44.9 ± 2.1

< 0.001

 Left ventricular end-diastolic diameter (mm)

46.3 ± 3.9

46.9 ± 4.2

0.593

 Left ventricular end-systolic diameter (mm)

28.0 ± 3.1

27.5 ± 2.1

0.411

 Left ventricular ejection fraction (%)

69.0 ± 5.8

70.0 ± 3.5

0.354

NT-proBNP (pg/ml)

204.50 ± 56.35

347.80 ± 35.80

< 0.001

Ablation protocol (persistent AF)

n=14

n=19

 

 CAPV+additional linear ablation

8 (57.1%)

9 (47.4%)

0.728

 CAPV+LA "roof" line

8 (57.1%)

9 (47.4%)

0.728

 CAPV+LA "mitral isthmus" line

8 (57.1%)

9 (47.4%)

0.728

Ablation protocol (paroxysmal AF)

n=37

n=6

 

 CAPV+additional linear ablation

7 (18.9%)

2 (33.3%)

0.589

 CAPV+LA "roof" line

7 (18.9%)

2 (33.3%)

0.589

 CAPV+LA "mitral isthmus" line

5 (13.5%)

0

-

  1. Data were expressed as numbers (%), Mean ± SD.
  2. Abbreviations: ACEI = angiotensin-converting enzyme inhibitor, ARB = angiotensin II receptor blocker, NT-proBNP = N-terminal pro-brain natriuretic peptide,CAPV=circumferential ablation of pulmonary vein, LA=left atrium.