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Table 2 Echocardiographic variables

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)
LA (mm)a 34.4 ± 2.3 32.2 ± 4.7 40.7 ± 4.1 46.6 ± 6.5 33.6 ± 3.2 37.9 ± 6.8 44.1 ± 5.1
LVDD (mm)a 47.4 ± 3.9 47.1 ± 4.2 62.4 ± 5.7 74.9 ± 5.8c 46.7 ± 4.5 50.7 ± 7.6 67.0 ± 4.9
LVSD(mm)a 31.3 ± 3.9 33.5 ± 4.8 50.5 ± 7.2 66.1 ± 5.7 30.5 ± 3.2 45.9 ± 7.0 59.5 ± 5.1
LVFS (%)a 34.3 ± 3.1 33.3 ± 4.9 19.3 ± 6.0 11.2 ± 3.7 35.2 ± 2.6 19.0 ± 9.4 11.2 ± 2.6
LVEDV (ml)a 82.5 ± 24.6d 74.0 ± 29.8 149.5 ± 37.0 262.0 ± 61.7 108.7 ± 28.2 147.1 ± 67.8 216.4 ± 63.4
LVESV (ml)a 29.5 ± 11.8 38.5 ± 15.3 84.6 ± 24.0 191.6 ± 43.8 39.6 ± 13.2 87.0 ± 45.8 167.1 ± 49.7
LVEF (%)a 65.0 ± 4.3 61.7 ± 5.5 43.8 ± 6.6 26.6 ± 3.9 64.3 ± 4.6 42.1 ± 6.0 23.0 ± 6.1
Diast. Func.e
 Normal 5 (62.5 %) 9 (69.7 %) 1 (5.9 %) 0 (0 %) 54 (93.1 %) 2 (28.6 %) 0 (0 %)
 Grade I 3 (37.5 %)e 4 (30.8 %)e 11 (64.7 %) 5 (55.6 %) 4 (6.9 %) 5 (71.4 %) 8 (42.1 %)
 Grade II 0 (0 %) 0 (0 %) 5 (29.4 %) 4 (44.4 %) 0 (0 %) 0 (0 %) 5 (26.3 %)
 Grade III 0 (0 %) 0 (0 %) 0 (0 %) 0 (0 %) 0 (0 %) 0 (0 %) 1 (5.3 %)
 Grade IV 0 (0 %) 0 (0 %) 0 (0 %) 0 (0 %) 0 (0 %) 0 (0 %) 5 (26.3 %)
E Vel (m/s)a 0.73 ± 0.17 0.78 ± 0.15 0.65 ± 0.26 0.79 ± 0.34 0.82 ± 0.16 0.61 ± 0.16 0.76 ± 0.24
E DT (ms)a 240.6 ± 37.3f 214.5 ± 36.3 274.6 ± 81.3 233.6 ± 60.5 190.8 ± 33.3 238.6 ± 61.8 200.9 ± 107.4
A Vel (m/s)a 0.71 ± 0.16g 0.69 ± 0.17g 0.67 ± 0.27 0.69 ± 0.18 0.48 ± 0.12 0.71 ± 0.19 0.60 ± 0.33
S’ Vel (cm/s)a 0.06 ± 0.01h 0.05 ± 0.01h 0.05 ± 0.01 0.04 ± 0.01 0.08 ± 0.02 0.05 ± 0.01 0.03 ± 0.01
E’ Vel (cm/s)a 0.06 ± 0.02i 0.08 ± 0.02i 0.05 ± 0.01 0.03 ± 0.01 0.11 ± 0.02 0.07 ± 0.01 0.04 ± 0.02
A’ Vel (cm/s)a 0.09 ± 0.03 0.08 ± 0.02 0.07 ± 0.02 0.06 ± 0.02 0.09 ± 0.02 0.06 ± 0.01 0.04 ± 0.02
E/E’a 12.0 ± 4.3g 11.8 ± 5.3g 13.4 ± 4.7 23.9 ± 11.1 7.9 ± 1.7 9.8 ± 2.5 23.4 ± 11.0
MR Gradeb
 Absent/Trivial 6 (75.0 %) 9 (69.2 %) 4 (23.5 %) 0 (0 %) 55 (94.8 %) 2 (28.6 %) 1 (5.3 %)
 Mild 2 (25.0 %)j 4 (30.8 %)j 9 (52.9 %) 3 (33.3 %) 3 (5.2 %) 4 (57.1 %) 13 (68.4 %)
 Moderate 0 (0 %) 0 (0 %) 3 (17.6 %) 2 (22.2 %) 0 (0 %) 1 (14.3 %) 4 (21.1 %)
 Severe 0 (0 %) 0 (0 %) 1 (5.9 %) 4 (44.4 %) 0 (0 %) 0 (0 %) 1 (5.3 %)
  1. aContinuous numeric variables expressed as mean ± SD. bOrdinal variables expressed as number of patients (percentage). LA, left atrium; LVDD, left ventricular diastolic diameter, LVSD, left ventricular systolic diameter; LVFS, left ventricular fractional shortening; LVEDV, end-diastolic volume of the left ventricle; LVESV, end-systolic volume of the left ventricle; LVEF, left ventricular ejection fraction; E Vel, E wave velocity, TD E, deceleration time of E wave; A Vel, A wave velocity; S' Vel, S’ wave velocity; E’ Vel, E’ wave velocity; MR degree, degree of mitral regurgitation
  2. cStudent t-test, p = 0.01; vs. C3
  3. dTukey test, p = 0.04, vs. C1
  4. eFisher’s exact test; Ch1A and Ch1B, p = 0.03; vs. C1
  5. fTukey test, p = 0.01, vs. C1
  6. gTukey; Ch1A and Ch1B, p < 0.05, vs. C1
  7. hTukey; Ch1A and Ch1B, p < 0.01, vs. C1
  8. iTukey; Ch1A and Ch1B, p < 0.05, vs. C1
  9. jTukey; Ch1A and Ch1B, p = 0.01, vs. C1