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Table 2 Ventilator settings and functional parameters on admission to the intensive care unit

From: Prevalence of endotoxemia after surgery and its association with ICU length of stay

  

Low

Intermediate

High

Ventilated patients

Admission

62/68 (91%)

16/17 (94%)

17/17 (100%)

 

Day 1

6/68 (9%)*

1/17 (6%)*

1/17 (6%)*

Tidal volume (l/min)

Admission

6.5 ± 1.8

6.4 ± 1.2

7.3 ± 1.9

 

Day 1

/

/

/

Respiratory rate (atti/minuto)

Admission

11 ± 4

11 ± 2

12 ± 7

 

Day 1

18 ± 5*

19 ± 5*

16 ± 4*

PaO2/FiO2 (mmHg)

Admission

379 ± 111

413 ± 113

372 ± 96

 

Day 1

329 ± 62*

330 ± 46*

299 ± 83*

PaCO2 (mmHg)

Admission

38.6 ± 4.9

35.1 ± 5.6#

37.7 ± 5.0

 

Day 1

39.9 ± 4.7

39.3 ± 5.1*

38.8 ± 4.1

pH arterial blood

Admission

7.41 ± 0.05

7.42 ± 0.06

7.39 ± 0.06

 

Day 1

7.43 ± 0.03

7.43 ± 0.03

7.43 ± 0.04

Lactate (mmol/l)

Admission

1.12 ± 0.57

1.23 ± 0.47

1.40 ± 1.39

 

Day 1

0.79 ± 0.38*

0.81 ± 0.37*

0.89 ± 0.57

Heart rate (bpm)

Admission

76 ± 16

75 ± 17

77 ± 18

 

Day 1

82 ± 15*

80 ± 12

84 ± 15

Mean arterial pressure (mmHg)

Admission

88 ± 13

87 ± 13

92 ± 17

 

Day 1

91 ± 12

94 ± 13

93 ± 16

Central venous pressure (mmHg)

Admission

7.5 ± 2.5

6.3 ± 2.9

7.5 ± 2.2

 

Day 1

6.1 ± 2.6

6.1 ± 2.5

6.1 ± 2.7

Hemoglobin (g/dl)

Admission

12.0 ± 3.5

12.4 ± 1.8

12.4 ± 1.6

 

Day 1

11.3 ± 1.6

11.5 ± 1.7

12.0 ± 1.3

Creatinine (mg/dl)

Admission

0.99 ± 0.92

1.06 ± 0.68

0.89 ± 0.37

 

Day 1

1.04 ± 1.12

1.05 ± 0.47

0.85 ± 0.27

Azotemia (mg/dl)

Admission

36 ± 24

40 ± 21

37 ± 21

 

Day 1

37 ± 27

41 ± 24

36 ± 25

Glycemia (mg/dl)

Admission

134 ± 30

134 ± 25

132 ± 35

 

Day 1

110 ± 29*

111 ± 23*

105 ± 21*

Sodium (Na+; mEq/l)

Admission

137.5 ± 2.5

137.1 ± 2.2

137.8 ± 2.1

 

Day 1

137.9 ± 2.7

138.4 ± 3.5

138.1 ± 2.7

Potassium (K+;mEq/l)

Admission

3.9 ± 0.5

3.9 ± 0.5

3.9 ± 0.4

 

Day 1

4.1 ± 0.3*

4.0 ± 0.4*

3.9 ± 0.4

Temperature (°C)

Admission

35.2 ± 0.9

34.5 ± 0.9

35.4 ± 1.2#

 

Day 1

36.6 ± 0.6

36.7 ± 0.5

36.8 ± 0.5

WBC (103/mm3)

Admission

10.8 ± 4.2

12.5 ± 5.5

10.8 ± 5.1

 

Day 1

9.4 ± 3.0*

10.4 ± 4.0

10.2 ± 2.7

SIRS criteria

Admission

1.4 ± 0.7

1.8 ± 0.8

1.4 ± 0.9

 

Day 1

0.9 ± 0.9*

1.3 ± 1.1*

0.9 ± 0.8

  1. Ventilatory and functional parameters collected within four hours of admission to the intensive care unit (Admission) and the morning after (Day 1) are shown in the table. Patients were stratified according to their endotoxin activity levels on admission. * P < 0.05 Admission vs Day 1; # p < 0.05 between EA stratification groups. FiO2 = fraction of inspired yoghurt; PaCO2 = partial pressure of arterial carbon dioxide; PaO2 = partial pressure of arterial oxygen; SIRS = Systemic Inflammatory Reaction Syndrome; WBC = white blood cell.