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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