Table 2 Intraoperative vital signs and arterial blood gas data

 Baseline value (bpm)

77.7 ± 11

76.8 ± 11.1

0.64

 Lowest value (bpm)

56.4 ± 10.6

40.6 ± 7.4

< 0.001^c

 Decreased percentage from baseline level (%)

26.8 ± 12.2

46.7 ± 9.8

< 0.001^c

 Baseline value (mmHg)

148 ± 22.9

150.2 ± 20.9

0.59

 Lowest value (mmHg)

89.7 ± 11.5

83.6 ± 10.5

< 0.05^a

 Decreased percentage from baseline level (%)

38.1 ± 11.2

43.5 ± 9.7

< 0.01^b

 Baseline value (mmHg)

76.1 ± 13.7

73.8 ± 11.9

0.28

 Lowest value (mmHg)

50 ± 7.6

45.4 ± 7.3

< 0.01^b

 Decreased percentage from baseline level (%)

33.1 ± 11.5

37.4 ± 11.4

< 0.05^a

 Baseline value (mmHg)

109.1 ± 11.6

105.8 ± 10.3

0.14

 Lowest value (mmHg)

63.2 ± 7.7

58.1 ± 7.2

< 0.01^b

 Decreased percentage from baseline level (%)

42 ± 5.3

44.9 ± 5.2

< 0.01^b

In room SpO₂ (%)

98.1 ± 2

97.9 ± 2

0.56

 pH

7.4 ± 0

7.4 ± 0

0.07

 PaO₂ (mmHg)

305.3 ± 117.6

323.2 ± 102

0.41

 PaCO₂ (mmHg)

40.8 ± 5.8

38.9 ± 5.6

0.05

 Saturation (%)

99.3 ± 1

99.4 ± 1.3

0.45

 pH

7.34 ± 0

7.31 ± 0.1

< 0.01^b

 PaO₂ (mmHg)

313 ± 110

291.3 ± 134

0.38

 PaCO₂ (mmHg)

44.1 ± 7.8

47.6 ± 7.8

< 0.05^a

 Saturation (%)

99.2 ± 0.9

99.1 ± 2.1

0.71

CO₂ retention pre-one lung and one-lung ventilation (mmHg)

3.5 ± 9.2

8.8 ± 10.1

< 0.05^a