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Table 3 Three-dimensional speckle tracking echocardiography-derived parameters in amyloidosis patients by cardiac involvement and survival status

From: Predictors of cardiac involvement and survival in patients with primary systemic light-chain amyloidosis: roles of the clinical, chemical, and 3-D speckle tracking echocardiography parameters

Parameters

All patients (n = 74)

With CI (n = 42)

Without CI (n = 32)

P value

Non-survivors (n = 20)

Survivors (n = 54)

P value

Global strain

 GLS (%)

15.79 ± 2.37

14.28 ± 1.89

17.76 ± 1.14

< 0.001

14.22 ± 2.68

16.37 ± 1.96

< 0.001

 GRS (%)

36.35 ± 3.70

34.64 ± 3.72

38.60 ± 2.19

< 0.001

34.32 ± 3.85

37.10 ± 3.38

0.003

 GCS (%)

27.97 ± 2.94

27.59 ± 3.30

28.49 ± 2.33

0.196

27.32 ± 2.52

28.22 ± 3.06

0.240

 GAS (%)

32.45 ± 3.01

31.62 ± 3.28

33.56 ± 2.27

0.005

31.17 ± 2.97

32.93 ± 2.93

0.025

Segments longitudinal strain

 Basal segments(%)

15.51 ± 3.89

13.35 ± 3.09

18.33 ± 2.94

< 0.001

12.30 ± 3.51

16.69 ± 3.34

< 0.001

 Medial segments (%)

14.54 ± 2.59

13.32 ± 2.16

16.15 ± 2.22

< 0.001

13.79 ± 2.71

14.82 ± 2.51

0.132

 Apical segments (%)

18.78 ± 4.05

17.89 ± 3.94

19.96 ± 3.95

0.029

18.61 ± 5.12

18.85 ± 3.64

0.823

 Apical/basal ratio

1.31 ± 0.51

1.44 ± 0.56

1.14 ± 0.36

0.006

1.62 ± 0.62

1.19 ± 0.40

0.009

 Relative apical sparing

2.29 ± 0.72

2.48 ± 0.79

2.05 ± 0.55

0.007

2.78 ± 0.82

2.11 ± 0.59

0.002

  1. GLS global longitudinal strain, GRS global radial strain, GCS global circumferential strain, GAS global area strain