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Table 1 Baseline characteristics of surgical patients according to symptom status

From: Myocardial fibrosis in asymptomatic and symptomatic chronic severe primary mitral regurgitation and relationship to tissue characterisation and left ventricular function on cardiovascular magnetic resonance

 

N

Asymptomatic

N = 65

Symptomatic

N = 39

P-value

Clinical characteristics

 Age (years)

104

62 ± 14

64 ± 12

0.428

 Male sex

104

50 (77%)

26 (67%)

0.254

 BMI (kg/m2)

104

25 ± 4

27 ± 5

0.065

 BSA (m2)

104

1.88 ± 0.23

1.91 ± 0.23

0.491

 Treated hypertension

104

20 (31%)

12 (31%)

1.000

Atrial fibrillation

104

  

0.008

 None

 

53 (82%)

21 (54%)

 

 Paroxysmal

 

2 (3%)

5 (13%)

 

 Permanent

 

10 (15%)

13 (33%)

 

eGFR (ml/min/1.73m2)

104

75 (65–84)

72 (60–82)

0.401

Degeneration subtype

104

  

0.076

 Barlow’s disease

 

24 (37%)

11 (28%)

 

 Indeterminant

 

3 (5%)

7 (18%)

 

 Fibroelastic deficiency

 

38 (58%)

21 (54%)

 

MLHFQ score

103

5 (1–17)

43 (30–57)

< 0.001

%PredVO2max (%)

103

99 ± 20

79 ± 22

< 0.001

Resting PASP (mmHg)

85

33 ± 10

38 ± 20

0.071

Ventricular ectopy burden (%)

54

0.1 (0.0–1.0)

0.5 (0.0–1.4)

0.356

Cardiac magnetic resonance characteristics

 LVEDVI (ml/m2)

104

105 ± 22

103 ± 21

0.663

 LVESVI (ml/m2)

104

33 ± 13

35 ± 11

0.342

 LVESD (mm)

104

3.7 ± 0.7

3.8 ± 0.6

0.380

 LVMI (g/m2)

104

71 ± 13

66 ± 13

0.045

 LVEF (%)

104

70 ± 8

66 ± 9

0.065

 GCS (%)

102

− 18.2 ± 3.0

− 16.6 ± 3.5

0.017

 GLS (%)

102

− 15.9 ± 2.7

− 14.8 ± 3.3

0.099

 LAVI (ml/m2)

102

88 ± 44

96 ± 47

0.341

 RVESVI (ml/m2)

104

31 ± 9

33 ± 13

0.474

 RVEF (%)

104

57 ± 8

55 ± 10

0.122

 RV Ell

104

− 21.6 ± 4.5

− 21.4 ± 5.0

0.811

 MR volume (ml)

104

62 ± 27

67 ± 36

0.410

 MR fraction (%)

104

44 ± 12

49 ± 19

0.121

 ECV (%)

101

26.8 ± 3.1

28.2 ± 3.3

0.045

 Native T1 (ms)

103

981 ± 24

991 ± 26

0.054

 LGE presence (n, %)

102

22 (34%)

12 (32%)

0.830

 LGE quantification (g)

102

0.00 (0.00–0.37)

0.00 (0.00–0.24)

0.452

  1. Data are reported as N (%), with P-values from chi2 tests; median (interquartile range), with P-values from Mann–Whitney U tests; or as mean ± SD, with P-values from independent samples t-tests, as applicable. Italic P-values are significant at P < 0.05
  2. %PredVO2max percentage predicted maximal oxygen consumption, BMI body mass index, ECV extracellular volume, eGFR estimated glomerular filtration rate, GCS global circumferential strain, GLS global longitudinal strain, LGE late gadolinium enhancement, LAVI left atrial volume indexed, LVEDVI left ventricular diastolic volume indexed, LVEF left ventricular ejection fraction, LVESD left ventricular end-systolic dimension, LVESVI left ventricular systolic volume indexed, LVMI left ventricular mass indexed, MLHFQ Minnesota living with heart failure questionnaire, MR mitral regurgitation, RVEF right ventricular ejection fraction, RV Ell right ventricular longitudinal strain, RVESVI right ventricular end-systolic volume indexed, PASP pulmonary artery systolic pressure