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Table 2 Echocardiographic and MRI measurements in subjects with aortic valve stenosis summarized.

From: Reduced global longitudinal strain in association to increased left ventricular mass in patients with aortic valve stenosis and normal ejection fraction: a hybrid study combining echocardiography and magnetic resonance imaging

Variable

All patients

(n = 38)

LVM

Normal (n = 21)

LVM

mildly increased (n = 10)

LVM

considerably

increased (n = 7)

p- Value

LVM (MRI, g/m2 BSA, SD)

101 ± 23

84 ± 12

116 ± 11

131 ± 14

 

LVM (Echo, g/m2 BSA, SD)

121 ± 36

103 ± 29

132 ± 31

161 ± 23

 

GLS Baseline (%)

-15,2 ± 3,6

-17,0 ± 2,6

-13,2 ± 3,8

-12,4 ± 2,9

0,001*

GLS after AVR (%)

-17,6 ± 3,2

-19,5 ± 2,8

-15,4 ± 2,4

-15,8

0,04*

Vmax (cm/s)

434 ± 71

428 ± 72

426 ± 64

462 ± 80

0,51

Pmax (mmHg)

77 ± 26

75 ± 26

74 ± 22

87 ± 30

0,5

Pmean (mmHg)

45 ± 18

43 ± 17

43 ± 16

53 ± 22

0,37

AVA (cm2)

0,86 ± 0,23

0,89 ± 0,18

0,87 ± 0,26

0,73 ± 0,32

0,32

AVA index (cm2/m2 BSA)

0,47 ± 0,12

0,49 ± 0,08

0,46 ± 0,12

0,42 ± 0,21

0,41

ELI (cm2/m2 BSA)

0,54 ± 0,16

0,56 ± 0,11

0,53 ± 0,15

0,48 ± 0,28

0,49

E/A

1,1 ± 0,8

1,0 ± 0,5

1,1 ± 0,9

1,4 ± 1,3

0,53

Smax (cm/s)

4,8 ± 1,3

5,1 ± 1,3

4,7 ± 1,4

4,0 ± 1,0

0,14

E' (cm/s)

4,5 ± 1,2

4,9 ± 1,2

3,8 ± 1,2

4,5 ± 1,2

0,06

E/E'

20,5 ± 8,6

20,6 ± 8,8

21,5 ± 9,9

18,5 ± 6,5

0,78

CO (Echo, l/min)

5,0 ± 2,1

4,9 ± 2,3

5,3 ± 2,5

4,7 ± 0,9

0,85

SV (MRI, ml/min)

86 ± 22

84 ± 24

90 ± 23

85 ± 14

0,77

EF (Echo, %)

64 ± 12

67 ± 8

60 ± 15

61 ± 15

0,23

EF (MRI, %)

64 ± 10

68 ± 7

57 ± 12

63 ± 9

0,16

  1. Left ventricular mass index was graduated based on MRI measurements.
  2. A = late mitral inflow velocity; AVA = aortic valve area; AVR = aortic valve replacement; BSA = body surface area; CO = cardiac output, E = early mitral inflow velocity; E' = early tissue Doppler velocity at the septal mitral annuls, EF = ejection fraction; ELI = energy loss index; GLS = global longitudinal strain; LVM = left ventricular mass index; MRI = magnetic resonance imaging, P = pressure; S = systolic tissue Doppler velocity at the septal mitral annulus); SV = stroke volume; V = velocity