Table 2 Comparison of hemodynamic and echocardiographic parameters between two groups before and after fluid challenge test in mechanically ventilation patients

  IVCmax (cm)

1.56 ± 0.31*

1.60 ± 0.33

1.74 ± 0.34

1.84 ± 0.32†

  IVCmin (cm)

1.20 ± 0.29*

1.24 ± 0.34

1.46 ± 0.36

1.54 ± 0.34†

  ΔIVC (cm)

0.35 (0.31–0.41)*

0.35 ± 0.12

0.27 (0.21–0.31)

0.30 ± 0.11

  cIVC1 (%)

24.02 ± 5.93*

21.51 (17.68–26.89)

15.12 (12.57–19.46)

16.69 ± 6.65

  CVP (cmH₂O)

5 (2–6)

5 ± 3

5 ± 3

5 ± 3

  MAP (mmHg)

95 ± 12

96 ± 11

95 ± 12

94 ± 11

  HR (beats min⁻¹)

60 (54–67)

64 ± 8†

62 (55–67)

61 (56–67)

  VTI (cm)

24.5 ± 3.4

27.6 ± 4.3†

26.4 ± 4.0

27.7 ± 4.0†

  CO (L min⁻¹)

4.54 ± 0.98

5.41 ± 1.18†

5.10 ± 1.19

5.38 ± 1.26†

  CI (L min⁻¹ m⁻²)

2.78 ± 0.57*

3.31 ± 0.69†

3.23 ± 0.82

3.41 ± 0.85†