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Table 1 Comparison of annuloplasty techniques using CMR and TTE (N = 21)

From: The evaluation of annuloplasty in bicuspid aortic valve repair using cardiac magnetic resonance

Characteristics

Overall (N = 21)

SCA (N = 10)

EA (N = 11)

P-value

Demographic parameters

    

Age, years

53 (29; 66)

63 (31; 67)

50 (28; 63)

0.46

Gender male, n (%)

13 (62)

5 (50)

8 (73)

0.39

BSA, m2

2.0 (1.9; 2.2)

2.0 (2.0; 2.3)

1.9 (1.8; 2.2)

0.11

CMR LV volume parameters

    

EDV, ml

186 (134; 237)

164 (131; 235)

193 (154; 242)

0.65

EDVI, ml/m2

89 (70; 114)

79 (66; 108)

95 (72; 121)

0.39

ESV, ml

68 (51; 118)

62 (47; 122)

76 (61; 116)

0.65

ESVI, ml/m2

35 (28; 55)

30 (24; 53)

36 (29; 57)

0.31

SV, ml

111 (84; 123)

93 (82; 124)

113 (91; 125)

0.56

SVI, ml/m2

53 (42; 64)

47 (40; 56)

55 (42; 65)

0.15

EF, %

59 (52; 62)

61 (49; 66)

58 (54; 61)

0.56

LV mass, g

115 (85; 151)

100 (85; 151)

116 (84; 158)

0.71

LV mass index, g/m2

53 (45; 72)

50 (44; 63)

63 (45; 83)

0.31

EDV normalization, n (%)

16 (76)

9 (90)

7 (64)

0.31

EF normalization (≥ 55%), n (%)

15 (71)

7 (70)

8 (73)

0.99

CMR RV volume parameters

    

EDV, ml

170 (146; 196)

165 (140; 192)

173 (150; 203)

0.65

EDVI, ml/m2

83 (76; 96)

78 (71; 91)

91 (80; 98)

0.10

ESV, ml

72 (61; 84)

67 (60; 82)

73 (64; 91)

0.35

ESVI, ml/m2

35 (32; 43)

32 (29; 38)

38 (34; 48)

0.06

SV, ml

94 (79; 111)

92 (78; 111)

94 (84; 112)

0.81

SVI, ml/m2

47 (42; 53)

45 (39; 50)

48 (45; 55)

0.15

EF, %

56 (52; 61)

57 (55; 61)

55 (51; 62)

0.51

CMR aortic valve/root parameters

    

Annulus, mm

22.0 (20.5; 26.8)

21.8 (19.8; 26.8)

22.5 (21.0; 27.0)

0.76

Annulus/BSA, mm/m2

10.9 (10.0; 13.7)

10.6 (10.0; 12.4)

12.7 (9.8; 14.1)

0.31

AVA, cm2

3.0 (2.1; 3.5)

2.5 (2.0; 3.4)

3.5 (2.5; 4.0)

0.04

AVA/BSA, cm2/m2

1.4 (1.1; 1.8)

1.1 (1.0; 1.5)

1.6 (1.3; 2.1)

0.02

Aortic root diameter, mm

38.4 (36.4; 41.6)

36.7 (35.8; 39.4)

39.8 (38.1; 43.8)

0.02

Aortic root diameter/BSA, mm/m2

19.7 (17.7; 21.7)

18.2 (15.9; 20.0)

21.5 (17.7; 24.2)

0.03

Aortic root height, mm

26.0 (23.5; 29.0)

25.5 (23.8; 28.5)

27.0 (23.0; 29.0)

0.61

STJ, mm

30.0 (28.0; 31.0)

30.0 (25.0; 30.0)

30.0 (29.0; 31.0)

0.20

Ascending aorta, mm

32.0 (30.5; 33.5)

32.0 (30.8; 33.3)

32.0 (30.0; 34.0)

0.81

Regurgitant fraction, %

7 (3; 12)

9 (3; 17)

6 (2; 12)

0.81

Regurgitant volume, ml

7 (3; 13)

7 (3; 20)

7 (2; 12)

0.81

Residual aortic regurgitation

   

0.51

 None/mild, n (%)

17 (81)

8 (80)

9 (82)

 

 Moderate, n (%)

3 (14)

2 (20)

1 (9)

 

 Severe, n (%)

1 (5)

0 (0)

1 (9)

 

TTE parameters

    

Interventricular septal thickness at end-diastole, mm

12.0 (11.0; 13.3)

12.3 (11.6; 15.1)

11.5 (11.0; 13.0)

0.17

LV end-diastolic dimension, mm

53.0 (46.5; 59.3)

51.0 (44.0; 60.4)

54.0 (48.0; 58.0)

0.76

LV posterior wall thickness at end-diastole, mm

9.0 (8.0; 10.5)

9.5 (8.0; 11.3)

9.0 (7.0; 9.5)

0.25

Peak gradient, mmHg

16 (9; 24)

21 (15; 27)

10 (6; 17)

0.04

Residual aortic regurgitation

   

0.99

 None/mild, n (%)

17 (81)

8 (80)

9 (82)

 

 Moderate, n (%)

4 (19)

2 (20)

2 (18)

 

 Severe, n (%)

0 (0)

0 (0)

0 (0)

 
  1. Values are presented as the number of patients (%) or median (first quartile; third quartile)
  2. P-values below 0.05 were determined as statistically significant are shown in bold
  3. AVA, aortic valve area; BSA, body surface area; CMR, cardiac magnetic resonance; EA, external annuloplasty; EDV, end-diastolic volume; EDVI, end-diastolic volume index; EF, ejection fraction; ESV, end-systolic volume; ESVI, end-systolic volume index, LV, left ventricle; RV, right ventricle; SCA, subcommissural annuloplasty; STJ, sinotubular junction; SV, stroke volume; SVI, stroke volume index; TTE, transthoracic echocardiography
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