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Table 1 Blood gas analyses

From: Comparison of the effect of membrane sizes and fibre arrangements of two membrane oxygenators on the inflammatory response, oxygenation and decarboxylation in a rat model of extracorporeal membrane oxygenation

Parameter

Group

Timepoints

t0

t0.25

t0.5

t0.75

t1

t1.5

t2

Hb

SAMO

13.6 [13.2–14.2]

6.8 [6.8–7.7] *

7.3 [6.9–7.5]

7.7 [7.2–7.7]

7.4 [7.2–7.7]

7.5 [7.3–7.6]

7.1 [6.7–7.5]

Micro-1

13.4 [12.2–14.0]

7.9 [7.5–8.1]

7.7 [7.3–8.0]

7.5 [6.8–7.8]

7.4 [7.0–7.8]

7.2 [6.9–7.5]

6.9 [6.5–7.2]

pO2

SAMO

184 [115–196]

465 [418–498]

380 [356–388] **

267 [249–273] **

87 [82–106] *

247 [239–262] ***

241 [237–256] ***

Micro-1

166 [128–197]

408 [394–475]

314 [263–352]

197 [140–222]

76 [60–79]

176 [122–194]

158 [104–189]

pCO2

SAMO

43 [39–48]

37 [36–38]

34 [31–35]

33 [31–35]

35 [33–36]

35 [32–36]

34 [32–37]

Micro-1

40 [38–44]

36 [34–37]

34 [32–35]

33 [31–35]

33 [30–35]

33 [32–35]

35 [34–35]

pH

SAMO

7.40 [7.37–7.42]

7.44 [7.43–7.45]

7.49 [7.48–7.49] *

7.49 [7.47–7.51] *

7.48 [7.47–7.49] *

7.47 [7.46–7.49] **

7.46 [7.44–7.48] **

Micro-1

7.40 [7.37–7.41]

7.45 [7.43–7.48]

7.47 [7.46–7.47]

7.45 [7.44–7.48]

7.47 [7.44–7.48]

7.43 [7.42–7.44]

7.41 [7.39–7.42]

Bicarbonate

SAMO

25.9 [24.0–26.7]

25.6 [24.2–26.4]

26.7 [24.2–26.4]

26.5 [24.7–27.9] *

26.5 [25.0–27.9] *

26.5 [24.6–27.5] *

24.8 [23.3–26.7] **

Micro-1

24.8 [23.0–25.4]

25.1 [24.3–26.2]

25.2 [23.7–25.7]

24.3 [22.6–25.4]

24.0 [23.4–25.9]

23.0 [22–24.4]

22.1 [21.4–22.6]

BE

SAMO

1.7 [−0.6–2.6]

1.3 [− 0.4–2-2]

2.5 [−0.4–3.2]

2.3 [0.3–3.8] *

2.4 [0.6–3.8] *

2.4 [0.1–3.4] *

0.3 [− 1.3–2.6] **

Micro-1

0.4 [−1.7–1.1]

0.7 [− 0.2–1.9]

0.8 [− 0.9–1.4]

−0.2 [− 2.1–1.1]

−0.5 [− 1.0–1.7]

−1.7 [− 2.9 – − 0.1]

−2.8 [− 3.6 – − 2.2]

Natrium

SAMO

141 [139–143]

141 [140–142]

141 [140–142]

141 [141–142]

142 [141–142]

142 [141–143]

141 [141–144]

Micro-1

142 [141–144]

141 [140–141]

141 [140–142]

140 [139–142]

141 [140–142]

142 [141–142]

142 [140–143]

Potassium

SAMO

3.8 [3.6–4.0]

3.7 [3.6–3.9]

3.9 [3.8–4.2]

4.0 [3.8–4.2]

3.9 [3.8–4.2]

3.9 [3.7–4.1]

4.0 [3.9–4.2]

Micro-1

3.9 [3.8–4.0]

3.7 [3.6–3.8]

4.1 [3.9–4.3]

4.1 [4.0–4.2]

4.0 [3.9–4.1]

4.1 [3.8–4.3]

4.2 [4.1–4.3]

Calcium

SAMO

1.41 [1.37–1.44]

1.47 [1.44–1.48]

1.44 [1.42–1.46]

1.44 [1.43–1.48]

1.45 [1.44–1.48]

1.45 [1.43–1.48]

1.46 [1.44–1.50]

Micro-1

1.43 [1.41–1.46]

1.45 [1.44–1.47]

1.47 [1.46–1.49]

1.46 [1.42–1.49]

1.47 [1.46–1.48]

1.47 [1.45–1.48]

1.48 [1.47–1.52]

Chloride

SAMO

106 [103–107]

108 [108–109]

108 [107–111]

108 [106–108]

108 [107–109]

108 [107–109]

109 [108–109]

Micro-1

107 [105–108]

108 [107–109]

109 [108–110]

108 [108–110]

109 [107–111]

109 [108–110]

109 [108–110]

Glucose

SAMO

165 [154–172]

153 [143–163]

128 [118–138]

123 [116–141]

129 [121–138]

127 [118–135]

118 [111–125]

Micro-1

176 [154–181]

163 [161–169]

133 [118–135]

122 [112–149]

122 [120–139]

121 [113–125]

112 [111–119]

Lactate

SAMO

2.1 [1.6–2.2]

1.8 [1.5–2.3]

1.8 [1.6–2.1]

1.5 [1.3–1.7]

1.4 [1.0–1.5]

1.6 [1.4–1.8]

1.6 [1.4–1.8]

Micro-1

1.9 [1.5–2.0]

1.8 [1.5–2.1]

1.6 [1.4–1.7]

1.2 [1.1–1.5]

1.2 [1.0–1.5]

1.6 [1.4–1.9]

1.5 [1.4–1.9]

  1. Results of the blood gas analyses are presented as the median with an interquartile range (25th and 75th percentile)
  2. Abbreviations: SAMO Small animal membrane oxygenator, Micro-1 Micro-1 rat oxygenator, Hb Haemoglobin, pO2 Oxygen partial pressure, pCO2 Carbon-dioxide partial pressure, BE Base excess
  3. Asterisks display the degree of statistical significance: *: p < 0.05; **: p < 0.01; ***: p < 0.001