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Table 2 Haemodynamic variables

From: The effects of passive leg raising may be detected by the plethysmographic oxygen saturation signal in critically ill patients

 

Baseline 1

PLR test

Baseline 2

After volume expansion

Heart rate (beats/min)

 • Positive PLR test (n = 34)

94 ± 16

95 ± 20

97 ± 17

93 ± 15

 • Negative PLR test (n = 38)

90 ± 20

89 ± 20

88 ± 20

Systolic arterial pressure (mmHg)

 • Positive PLR test (n = 34)

115 ± 23

128 ± 29*

112 ± 28

122 ± 34

 • Negative PLR test (n = 38)

125 ± 20

130 ± 21*

123 ± 20

Diastolic arterial pressure (mmHg)

 • Positive PLR test (n = 34)

58 ± 11

63 ± 10*

57 ± 13

61 ± 15

 • Negative PLR test (n = 38)

60 ± 9

63 ± 9*

59 ± 9

Mean arterial pressure (mmHg)

 • Positive PLR test (n = 34)

77 ± 13

87 ± 21*

75 ± 17

80 ± 19

 • Negative PLR test (n = 38)

81 ± 12

85 ± 13*

80 ± 12

Central venous pressure (mmHg)

 • Positive PLR test (n = 34)

10 ± 5

13 ± 5*

10 ± 4

11 ± 5

 • Negative PLR test (n = 38)

10 ± 5

14 ± 5*

9 ± 5

Cardiac index (L/min/m2)

 • Positive PLR test (n = 34)

3.38 ± 1.21

4.03 ± 1.31*

3.20 ± 1.20

4.02 ± 1.35

 • Negative PLR test (n = 38)

3.19 ± 1.26

3.26 ± 1.32*¨

3.15 ± 1.31

GEDV (mL/m2)

 • Positive PLR test (n = 34)

766 ± 165

 

768 ± 205

789 ± 127

 • Negative PLR test (n = 38)

800 ± 242

 

792 ± 219

SVI (mL/m2)

 • Positive PLR test (n = 34)

37 ± 13

44 ± 15*

36 ± 12

43 ± 15

 • Negative PLR test (n = 38)

37 ± 15

38 ± 16

37 ± 17

PPV (%)

 • Positive PLR test (n = 28)

10.0 ± 4.0

 

9.8 ± 5.9

11.9 ± 16.2

 • Negative PLR test (n = 28)

8.0 ± 5.1

 

8.5 ± 4.7

PI (%)

 • Positive PLR test (n = 34)

2.9 ± 2.0

4.1 ± 2.3*

2.1 ± 1.4

3.0 ± 1.9

 • Negative PLR test (n = 38)

2.0 ± 1.8

2.0 ± 2.0¨

2.1 ± 1.9

  1. Values are expressed as mean ± standard deviation
  2. PLR passive leg raising test, GEDV global end-diastolic volume, SVI stroke volume index, PPV pulse pressure variation, PI perfusion index
  3. *p < 0.05 vs baseline 1
  4. p < 0.05 vs baseline 2
  5. ¨p < 0.05 between positive and negative PLR test
  6. In mechanically ventilated patients