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Table 2 Blood gases and statistically analysis.

From: Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study

  

baseline mean ± SD

10 min mean ± SD

20 min mean ± SD

% change baseline-10 min median

% change baseline-20 min median

pCO 2 arterial

Shunt PA -LΑ

32.98 ± 7.61

33.23 ± 6.06

34.25 ± 6.84

0.0

5.1

 

Shunt RA -LΑ

32.98 ± 7.61

31.28 ± 7.07

32.65 ± 6.20

-1,39

0.30

 

p-value

NS

NS

NS

NS

NS

pO 2 arterial

Shunt PA -LΑ

377.02 ± 82.72

352.31 ± 76.01

335.65 ± 55.35*

-5.18

-8.78

 

Shunt RA -LΑ

377.02 ± 82.72

362.27 ± 90.92

362.86 ± 90.10

0.0

0.0

 

p-value

NS

NS

NS

NS

NS

O 2 Sat arterial

Shunt PA -LΑ

99.45 ± 0.94

99.24 ± 0.95

99.32 ± 0.88

-0.10

0.0

 

Shunt RA -LΑ

99.45 ± 0.94

99.43 ± 0.90

99.59 ± 0.58

0.0

0.0

 

p-value

NS

NS

NS

NS

NS

pH pulmonary artery (distal)

Shunt PA -LΑ

7.50 ± 0.09

7.44 ± 0.07

7.44 ± 0.08

-0.27

-0.66

 

Shunt RA -LΑ

7.50 ± 0.09

7.44 ± 0.06

7.42 ± 0.07

-0.27

-0.94

 

p-value

NS

NS

NS

NS

NS

pCO 2 pulmonary artery (distal)

Shunt PA -LΑ

36.54 ± 8.25

43.22 ± 7.19*

42.78 ± 8.26*

11.11

11.11

 

Shunt RA -LΑ

36.54 ± 8.25

40.13 ± 8.40

41.25 ± 7.61*

4.06

10.62

 

p-value

NS

NS

NS

NS

NS

pO 2 pulmonary artery (distal)

Shunt PA -LΑ

39.66 ± 6.40

33.40 ± 5.11**

33.19 ± 6.22**

-9.97

-14.65

 

Shunt RA -LΑ

39.66 ± 6.40

33.48 ± 4.44**

35.66 ± 6.31*

-15.21

-5.47

 

p-value

NS

NS

NS

NS

NS

O 2 Sat pulmonary artery (distal)

Shunt PA -LΑ

76.86 ± 9.63

65.58 ± 9.69**

64.98 ± 10.75**

-14.74

-14.28

 

Shunt RA -LΑ

76.86 ± 9.63

64.75 ± 8.78**

65.83 ± 12.19*

-16.86

-7.39

 

p-value

NS

NS

NS

NS

NS

pCO2 left atrium

Shunt PA -LΑ

36.10 ± 4.07

40.68 ± 4.31**

39.54 ± 5.15*

10.40

3.32

 

Shunt RA -LΑ

36.10 ± 4.07

37.30 ± 4.80

35.84 ± 5.11

1.07

-6.63

 

p-value

NS

0.052

0.058

0.016

0.023

pO2 left atrium

Shunt PA -LΑ

172.85 ± 43.10

99.27 ± 19.83**

118.23 ± 24.57**

-42.05

-25.50

 

Shunt RA -LΑ

172.85 ± 43.10

114.47 ± 10.96**

121.30 ± 17.01**

-36.57

-29.94

 

p-value

NS

0.015

NS

0.050

NS

O 2 Sat left atrium

Shunt PA -LΑ

99.10 ± 0.97

97.01 ± 2.20*

97.74 ± 1.88

-2.61

-1.00

 

Shunt RA -LΑ

99.10 ± 0.97

97.46 ± 2.65

98.71 ± 0.89

-0.51

-0.31

 

p-value

NS

NS

NS

NS

NS

  1. ** p < 0.005 vs. baseline, * p < 0.05 vs. baseline, $ p < 0.05 vs. 20 min