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Table 1 Baseline characteristics and preoperative echocardiographic data

From: Mitral valve repair and concomitant maze procedure versus catheter ablation in the treatment of atrial functional mitral regurgitation

Variables

Surgical group (%)

Ablation group (%)

P value

Baseline characteristics

 Age(years)

63 ± 5.7

65 ± 5.9

0.3697

 Male

38 (63.3)

40 (60.6)

0.3235

 BSA(m2)

1.68 ± 0.16

1.66 ± 0.12

0.5247

 Hypertension

16 (26.7)

18 (27.3)

0.9390

 Diabetes

10 (16.7)

13 (19.7)

0.6601

 COPD

4 (6.7)

5 (7.6)

1.0000

 Coronary disease

9 (15.0)

10 (15.1)

0.9811

 Previous MI

2 (3.3)

4 (6.1)

0.7648

 Previous stroke/TIA

7 (11.7)

10 (15.1)

0.5674

 Renal failure

1 (1.7)

1 (1.5)

1.0000

 NYHA classifications

  I ~ II

21 (35.0)

25 (37.9)

0.7375

  III

39 (65.0)

41 (62.1)

0.7375

  IV

0

0

 Duration of AF (months)

19 ± 9.6

20 ± 7.6

0.4124

 Previous AF ablations

0

0

 EuroSCORE II, %

2.5 (1.6–4.1)

2.4 (1.2–4.0)

0.5128

 STS PROM score, %

3.7 (2.2–5.8)

3.5 (2.0–5.7)

0.4682

Echocardiographic characteristics

 LA volume (ml)

119 ± 49

116 ± 45

0.2927

 LVEDD (mm)

49 ± 6.0

48 ± 6.8

0.3061

 LVESD (mm)

37 ± 6.1

38 ± 6.4

0.2167

 IVS (mm)

10 ± 1.0

10 ± 0.8

0.5871

 LVEF (%)

56 ± 8.2

58 ± 8.5

0.3150

 Moderate-severe MR

60 (100)

66 (100)

0.1994

 Moderate-severe TR

46 (76.7)

50 (75.8)

0.9048

  1. BSA body surface area, COPD chronic obstructive pulmonary disease, MI myocardial infarction, TIA transient ischemic attack, NYHA New York heart association, AF atrial fibrillation, LA left atrium, LVEDD left ventricular end diastolic diameter, LVESD left ventricular end systolic diameter, IVS interventricular septum, LVEF left ventricular ejection fraction, MR mitral regurgitation, TR tricuspid Regurgitation