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Table 4 Three-dimensional strain deformation: Wall-by-wall analysis

From: Structural and functional changes in maternal left ventricle during pregnancy: a three-dimensional speckle-tracking echocardiography study

Variable (%) Controls Trimester 1 Trimester 2 Trimester 3 Postpartum
  - (14.1 ± 1.6)wk (25.5 ± 2.6)wk (37.8 ± 2.4)wk (7.8 ± 2.4)mo
Longitu.       
  Sep 17.42 ± 5.60 16.50 ± 3.72 16.31 ± 6.88 14.26 ± 5.40 17.90 ± 3.60
  lat 18.25 ± 9.16 19.03 ± 8.04 18.57 ± 6.88 16.85 ± 6.07 18.75 ± 6.25
  Ant 19.58 ± 7.52 21.91 ± 7.01 18.06 ± 6.80 17.20 ± 5.48* 20.02 ± 6.32
  Inf 15.85 ± 6.82 18.94 ± 5.78 14.76 ± 6.49 15.24 ± 6.42 16.45 ± 5.73
  Pos 13.29 ± 8.22 17.69 ± 8.28 15.71 ± 7.47 15.43 ± 7.22 14.18 ± 7.56
  A-s 16.18 ± 6.15 18.07 ± 6.34 15.73 ± 7.90 13.93 ± 6.70 16.69 ± 6.21
Circum.       
  Sep 16.42 ± 8.09 19.10 ± 5.07 16.58 ± 5.77 15.12 ± 6.38 16.44 ± 7.19
  lat 15.38 ± 8.07 18.00 ± 8.83 18.61 ± 9.01 18.27 ± 8.12 17.31 ± 7.68
  Ant 27.08 ± 4.73 20.05 ± 5.32* 20.09 ± 8.55* 18.94 ± 7.66* 24.45 ± 8.71
  Inf 14.00 ± 6.44 16.50 ± 7.45 14.82 ± 6.51 14.82 ± 7.79 14.42 ± 6.56
  Pos 11.86 ± 7.70 16.88 ± 7.72 17.94 ± 5.45 16.70 ± 7.94 14.36 ± 7.55
  A-s 23.00 ± 7.17 20.60 ± 5.50 19.79 ± 6.67 18.17 ± 6.93 21.47 ± 6.35
Area       
  Sep 30.58 ± 7.01 32.14 ± 4.05 28.17 ± 6.68 25.91 ± 8.59* 31.58 ± 6.71
  lat 27.50 ± 12.64 31.89 ± 11.36 30.25 ± 10.42 31.20 ± 9.13 29.09 ± 11.04
  Ant 39.67 ± 6.15 37.35 ± 10.70 32.41 ± 8.31* 31.00 ± 7.16* 38.77 ± 6.07
  Inf 26.69 ± 9.60 29.89 ± 9.43 26.21 ± 7.90 26.85 ± 8.24 26.37 ± 8.62
  Pos 21.14 ± 12.01 31.38 ± 9.83 29.09 ± 7.15 27.67 ± 9.80 22.56 ± 10.09
  A-s 34.55 ± 5.97 35.00 ± 6.48 31.21 ± 8.34 27.40 ± 10.75* 34.16 ± 7.97
Radial       
  Sep 45.50 ± 14.59 48.76 ± 9.38 41.97 ± 16.43 37.21 ± 15.68* 46.53 ± 9.62
  lat 49.38 ± 22.28 55.00 ± 27.56 54.61 ± 26.49 52.47 ± 21.30 50.28 ± 24.21
  Ant 70.17 ± 17.75 60.62 ± 22.18 52.19 ± 18.58* 48.90 ± 15.16* 68.48 ± 16.68
  Inf 39.08 ± 20.18 42.89 ± 17.28 38.18 ± 15.17 39.70 ± 15.37 40.38 ± 18.17
  Pos 32.14 ± 20.34 47.94 ± 21.94 43.81 ± 15.20 41.77 ± 18.32 34.14 ± 19.64
  A-s 55.82 ± 14.21 56.27 ± 14.60 48.74 ± 17.65 41.60 ± 18.95* 56.67 ± 15.27
  1. Data are given as mean ± SD, Longitu. indicates Longitudinal;Circum., Circumferential; sep, inferoseptum; lat, lateral wall; Ant, anterior wall; Inf, inferior wall; Pos, posterior wall; A-s, anteroseptum.
  2. *P < 0.05 vs. Controls; P < 0.05 vs. Trimester 1; P < 0.05 vs. Trimester 3; §P < 0.05 vs. Postpartum.