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Table 1 Demographic and 2D echocardiographic characteristics of participants by age at echocardiogram

From: Speckle tracking echocardiographically-based analysis of ventricular strain in children: an intervendor comparison

 

All groups (n = 108)

Group 1 (n = 36)

Group 2 (n = 36)

Group 3 (n = 36)

p

Age (y)

9.5 ± 5.4

9.4 ± 5.4

9.6 ± 5.1

9.5 ± 5.9

0.989

Female n (%)

52 (48.2%)

16 (44%)

18 (50%)

18 (50%)

0.913

Height (cm)

129.3 ± 33.4

132.2 ± 33.1

128.7 ± 31.1

127.1 ± 36.6

0.805

Weight (kg)

33.7 ± 20.9

36.5 ± 22.8

33.4 ± 20.8

31.3 ± 19.1

0.574

BSA (m2)

1.08 ± 0.47

1.1 ± 0.5

1.1 ± 0.5

1.0 ± 0.5

0.657

BMI (kg/m2)

17.8 ± 3.9

18.5 ± 4.6

17.7 ± 4.1

17.2 ± 3.0

0.339

SBP (mmHg)

103.3 ± 12.4

106.7 ± 12.9

102.8 ± 12.1

100.5 ± 11.7

0.101

DBP (mmHg)

56.1 ± 8.8

58.1 ± 9

53.4 ± 9.5

56.9 ± 7.4

0.064

Heart Rate (bpm)

83.3 ± 24.3

78.4 ± 17.7

83.2 ± 23.6

88.2 ± 29.7

0.238

2D LVEF (%)

61 ± 10

65 ± 4

56 ± 13

61 ± 7

<.001

2D LVEF Z score

−0.6 ± 2.1

0.3 ± 0.9

−1.7 ± 2.9

−0.5 ± 1.5

<.001

2D LVEDV (ml)

92.8 ± 59.7

87.6 ± 47.0

109.0 ± 71.4

81.7 ± 56.0

0.124

2D LVEDV Z score

1.1 ± 2.4

0.4 ± 0.8

2.3 ± 3.1

0.5 ± 2.2

<.001

2D LVESV (ml)

30.8 (18.3–45.0)

30.6 ± 16.6

53.7 ± 56.5

33.0 ± 29.4

0.021

2D LVESV Z score

1.1 ± 2.2

0.2 ± 0.9

2.5 ± 2.6

0.7 ± 2.0

<.001

2D LV mass (gm)

74.5 ± 47.0

73.5 ± 44.2

84.9 ± 54

65.2 ± 40.8

0.205

2D LV mass Z score

0.6 ± 1.8

0.0 ± 0.9

1.6 ± 2.4

0.2 ± 1.4

<.001

  1. Values are presented as mean ± SD or median (IQR). Group 1, patients with normal heart structure and function; Group 2, patients with biventricular circulation and ventricular paced rhythm and wide QRS (≥ 120 msec), Group 3, patients with abnormal contour of the ventricular septum in systole or diastole. p-value is from Kruskal-Wallis test for 2D LVESV, and from ANOVA (analysis of variance) for all other measures
  2. Abbreviations: 2D two-dimensional; BMI body mass index; BSA body surface area; DBP diastolic blood pressure; LVEDV left ventricular end-diastolic volume; LVEF left ventricular ejection fraction; LVESV left ventricular end-systolic volume; SBP systolic blood pressure; SD Standard Deviation; IQR Interquartile range