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Table 2 Cardiovascular variables

From: Effects of lung protective mechanical ventilation associated with permissive respiratory acidosis on regional extra-pulmonary blood flow in experimental ARDS

 

Increased PAW

Limited PAW

 

Heart rate, min−1

115 ± 35

137 ± 46

n.s.

Mean arterial pressure, mm Hg

98 ± 16

117 ± 16

p < 0.05

Mean pulmonary artery pressure, mmHg

28 ± 9

32 ± 11

p < 0.05

Pulmonary capillary wedge pressure, mm Hg

8 ± 3

7 ± 3

n.s.

Central venous pressure, mm Hg

12 ± 5

11 ± 4

n.s.

Intrathoracic blood volume, mL . kg−1

20.7 ± 4.2

23.1 ± 4.2

n.s.

Cardiac output, mL. kg−1. min−1

110 ± 22

140 ± 32

p < 0.05

Stroke volume, mL. kg−1. beat−1

1.04 ± 0.35

1.08 ± 0.25

n.s.

Systemic vascular resistance, mm Hg. kg. min. mL−1

2339 ± 571

2329 ± 625

n.s.

Pulmonary vascular resistance, mm Hg. kg. min. mL−1

555 ± 237

532 ± 218

n.s.

Hemoglobin, g. dL−1

9.9 ± 1.5

10.7 ± 1.5

p < 0.05

SaO2, (%)

94 ± 9

90 ± 11

n.s.

SvO2 (%)

50 ± 12

62 ± 13

p < 0.05

Oxygen delivery, mL. kg−1. min−1

13.0 ± 2.7

13.4 ± 2.4

n.s.

Lactate (mmol/l)

1 ± 0.4

0.8 ± 0.4

n.s.

  1. P AW airway pressure, SaO 2 arterial oxygen saturation, SvO 2 mixed venous oxygen saturation. Values are presented as mean ± standard deviation (SD); tested on a randomized basis; student t-test
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BMC Anesthesiology

ISSN: 1471-2253

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