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Table 2 Hemodynamic characteristics between responders and nonresponders before and after volume expansion a

From: Predicting preload responsiveness using simultaneous recordings of inferior and superior vena cavae diameters

Studied parameters

All patients

Responders

Nonresponders

P-value

(N = 44)

(n = 26)

(n = 18)

MAP, mmHg

    

T0

71 (53 to 100)

73 (55 to 100)

70 (58 to 89)

0.685

T1

78 (58 to 100)

77 (68 to 102)

79 (56 to 92)

0.563

HR, beats/min

    

T0

106 (68 to 141)

107 (75 to 138)

101 (61 to 142)

0.99

T1

101 (63 to 146)

102 (70 to 147)

101(61 to 142)

0.738

CVP, mmHg

    

T0

10 (4 to 17)

10 (5 to 17)

8 (3 to 18)

0.326

T1

101 (63 to 146)

102 (70 to 147)

101(61 to 142)

0.738

LVFAC, %

    

T0

46 (21 to 61)

50 (21 to 59)

42 (21 to 62)

0.75

T1

47 (23 to 63)

47 (25 to 63)

48 (26 to 61)

0.861

AoVTI, cm

    

T0

13.7 (8.2 to 22.8)

13.0 (8.3 to 19.9)

15.6 (10.2 to 24.1)

0.06

T1

18.0 (12.0 to 23.3)

18.2 (12.0 to 23.0)

16.9 (11.2 to 23.5)

0.527

CI, L . min-1 - m-2

    

T0

2.3 (1.3 to 3.8)

2.3 (1.3 to 3.4)

2.4 (1.2 to 4.0)

0.841

T1

2.8 (1.5 to 4.3)

3.1 (1.6 to 4.8)

2.5 (1.4 to 3.2)

0.054

DmaxSVC, mm

    

T0

13.2 (8.2 to 20.4)

12.0 (8.3 to 19.8)

14.0 (9.2 to 22.6)

0.05

T1

14.6 (8.9 to 21.7)

13.5 (8.5 to 22.4)

15.0 (10.4 to 19.1)

0.568

ΔSVC, %

    

T0

20 (6 to 47)

31 (7 to 49)

16 (5 to 30)

0.01

T1

12 (3 to 63)

15 (4 to 68)

6 (0 to 25)

0.008

DmaxIVC, mm

    

T0

19.6 (12.0 to 23.1)

19.0 (12.0 to 28.9)

19.9 (11.1 to 24.9)

0.67

T1

21.1 (12.9 to 28.0)

19.6 (12.1 to 28.1)

22.2 (16.1 to 25.1)

0.218

ΔIVC, %

    

T0

18 (2 to 55)

12 (2 to 55)

20 (3 to 58)

0.453

T1

9 (2 to 26)

10 (0 to 30)

6 (3 to 25)

0.47

  1. aAoVTI, Pulse Doppler aortic velocity time integral; CI, Cardiac index; CVP, Central venous pressure; DmaxIVC, Maximal diameter of inferior vena cava; DmaxSVC, Maximal diameter of superior vena cava; HR, Heart rate; ΔIVC, Distensibility index of inferior vena cava; LVFAC, Left ventricular fractional area change; MAP, Mean arterial pressure; ΔSVC, Collapsibility index of superior vena cava; T0, Before volume expansion; T1, After volume expansion; VTI, Velocity time integral. Data are expressed as medians with 95% confidences intervals. P-value corresponds to the comparison between Responders and Nonresponders at each time point (T0 and T1). Data are expressed as medians with fifth and ninety-fifth percentiles.