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Table 7 Analysis of mid-left ventricular radial strain and strain rate

From: Comprehensive left ventricular mechanics analysis by speckle tracking echocardiography in Chagas disease

Variables Chagas Controls
Ch1A (n = 8) Ch1B (n = 13) Ch2 (n = 17) Ch3 (n = 9) C1 (n = 58) C2 (n = 7) C3 (n = 19)
RS (%)
 AntSept 48.38 ± 12.84 48.40 ± 15.41 45.89 ± 24.70 29.15 ± 25.06a 44.85 ± 14.55 28.57 ± 15.97 8.79 ± 6.80
 Ant 49.92 ± 18.57 50.64 ± 26.51 35.28 ± 18.42 18.43 ± 14.55 43.75 ± 14.18 30.06 ± 17.27 8.39 ± 7.80
 Lat 58.15 ± 25.71 55.33 ± 33.18 30.87 ± 18.68 12.52 ± 11.90 49.90 ± 17.34 30.94 ± 22.50 13.14 ± 12.50
 Post 65.07 ± 30.01 54.06 ± 27.20 32.78 ± 19.12 7.49 ± 8.54 55.53 ± 20.00 29.66 ± 22.76 17.02 ± 14.11
 Inf 63.98 ± 26.45 48.18 ± 18.74 37.84 ± 18.37 11.09 ± 15.96 56.98 ± 19.69 26.82 ± 18.03 16.58 ± 12.16
 Sept 57.64 ± 17.73 45.75 ± 17.14 44.86 ± 20.87b 23.98 ± 19.59 53.69 ± 18.42 25.95 ± 11.45 13.36 ± 8.83
RSR (1/s)
 AntSept 1.78 ± 0.34 1.87 ± 0.83 1.35 ± 0.62 1.35 ± 0.59 1.69 ± 0.43 1.70 ± 1.20 1.04 ± 0.86
 Ant 1.81 ± 0.47 1.94 ± 0.85 1.53 ± 0.45 1.44 ± 0.48 1.75 ± 0.47 1.75 ± 0.68 1.24 ± 1.00
 Lat 2.11 ± 0.59 2.04 ± 0.69 1.52 ± 0.45 1.41 ± 0.77 1.88 ± 0.49 1.65 ± 0.43 1.47 ± 0.84
 Post 2.24 ± 0.68 1.96 ± 0.59 1.45 ± 0.55 1.08 ± 0.48 1.96 ± 0.51 1.50 ± 0.40 1.28 ± 0.55
 Inf 2.12 ± 0.66 1.91 ± 0.51 1.50 ± 0.82 0.93 ± 0.31 1.92 ± 0.50 1.41 ± 0.24 1.22 ± 0.63
 Sept 1.91 ± 0.49 1.89 ± 0.77 1.64 ± 0.58 1.33 ± 0.61 1.80 ± 0.46 1.42 ± 0.68 1.15 ± 0.58
  1. Continuos variables expressed as mean ± SD
  2. RS radial strain, RSR radial strain rate
  3. at-Student test; p = 0.02; vs C3
  4. bt-Student test; p = 0.04; vs C2