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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