Skip to main content

Table 4 Ability of different variables to detect preload responsiveness

From: Do changes in pulse pressure variation and inferior vena cava distensibility during passive leg raising and tidal volume challenge detect preload responsiveness in case of low tidal volume ventilation?

 

r versus PLR-induced changes in CI

p versus 0.5

AUROC

sd

p versus 0.50

Cut-off

Se

95% CI

Sp

95% CI

+ PV

95% CI

− PV

95% CI

+ LR

95% CI

− LR

95% CI

GEDV (mL/m2)

  

0.59

0.10

0.47

             

CVP (mmHg)

  

0.56

0.11

0.57

             

IVC max diameter (mm)

  

0.58

0.11

0.49

             

PPV (%)

  

0.66

0.10

0.10

             

SVV (%)

  

0.61

0.10

0.10

             

IVCDV (%)

  

0.64

0.11

0.20

             

ΔPPVPLR (% change)

− 0.77

< 0.01

0.98

0.02

< 0.01

≤ − 20%

100

78–100

93

61–100

94

69–99

100

 

15.0

2.3–99.6

0.0

 

ΔPPVPLR (abs. change)

− 0.70

< 0.01

0.98

0.02

< 0.01

≤ − 2 points

93

68–100

93

68–100

94

69–99

94

69–99

14.0

2.1–93.4

0.1

0.0–0.5

ΔPPVVt (% change)

0.53

< 0.01

0.94

0.04

< 0.01

> 20%

93

68–100

87

59–98

87

66–96

94

69–99

7.0

1.9–25.6

0.1

0.0–0.5

ΔPPVVt (abs. change)

0.71

< 0.01

0.98

0.02

< 0.01

> 1 point

93

68–100

100

78–100

100

 

94

69–99

  

0.1

0.0–0.5

ΔSVVPLR (% change)

− 0.66

< 0.01

0.90

0.07

< 0.01

≤ − 19%

80

52–96

100

78–100

100

 

83

65–93

5.5

1.5–20.7

0.3

0.1–0.7

ΔSVVPLR (abs. change)

− 0.73

< 0.01

0.88

0.07

< 0.01

≤ − 2 points

73

45–92

100

78–100

100

 

79

62–90

  

0.3

0.1–0.6

ΔSVVVt (% change)

0.07

0.69

0.82

0.08

< 0.01

> 20%

100

78–100

67

38–88

70

55–81

75

60–86

3.0

1.5–6.1

0.0

 

ΔSVVVt (abs. change)

0.21

0.26

0.94

0.04

< 0.01

> 1 point

93

68–100

73

45–92

78

60–89

100

 

3.5

1.5–8.2

0.1

0.0–0.6

ΔIVCDVPLR (% change)

− 0.50

< 0.01

0.76

0.10

< 0.01

≤ − 24%

73

45–92

87

85

83

59–95

77

58–89

5.5

1.5–20.7

0.3

0.1–0.7

ΔIVCDVPLR (abs. change)

− 0.30

0.09

0.56

0.11

0.60

             

ΔIVCDVVt (% change)

0.52

< 0.01

0.88

0.06

< 0.01

> 4%

100

78–100

67

38–88

75

60–86

100

 

3

1.5–6.1

0.0

 

ΔIVCDVVt (abs. change)

0.57

< 0.01

0.92

0.05

< 0.01

> 1 point

100

78–100

60

32–84

71

57–83

100

 

2.5

1.3–4.6

0.0

 
  1. AUROC area under the receiver operating characteristic curve, CI confidence interval, GEDV global end-diastolic volume indexed for body surface, IVC inferior vena cava, IVCDV respiratory variation of the diameter of the inferior vena cava, PPV pulse pressure variation, Se sensitivity, sd standard deviation, Sp specificity, SVV stroke volume variation, + PV positive predictive value, − PV negative predictive value, + LR positive likelihood ratio, − LR negative likelihood ratio, ΔPPVPLR changes in pulse pressure variation induced by passive leg raising, ΔSVVPLR changes in stroke volume variation induced by passive leg raising, ΔIVCDVPLR changes in the respiratory variation of the diameter of the inferior vena cava induced by a tidal volume challenge, ΔPPVVt changes in pulse pressure variation induced by a tidal volume challenge, ΔSVVVt changes in stroke volume variation induced by a tidal volume challenge, ΔIVCDVVt changes in the respiratory variation of the diameter of the inferior vena cava induced by a tidal volume challenge