Skip to main content

Table 3 Effects of thoracic epidural analgesia on oxygenation and pulmonary shunt fraction variables during OLV

From: The effects of thoracic epidural analgesia on oxygenation and pulmonary shunt fraction during one-lung ventilation: an meta-analysis

  

Median of Means (Range)

  

All available data

No. of comparisons

TEA group

GA group

WMD (95 % CI)

P value

During two-lung ventilation

PaO2 (mmHg)

13

382.42(205.00 to 85.00)

377.92(191.0 to 453.00)

6.29 [0.04 to 12.17]

0.35

PaCO2 (mmHg)

10

39.67 (32.50 to 37.6)

40.23 (35.60 to 37.40)

−0.21 [−1.11 to 0.68]

0.64

PvO2 (mmHg)

7

51.50(48.00 to 55.0)

51.62(48.0 to 53.30)

0.27 [−1.51 to 2.06]

0.76

Qs/Qt (%)

13

14.80 (4.90 to 22.50)

15.50 (3.95 to 21.60)

0.02[−0.47 to 0.50]

0.95

SvO2 (%)

4

85.37(83.30 to 87.10)

86.68(84.90 to 88.20)

−1.22[−2.36 to −0.07]

0.58

SaO2 (%)

4

99.75(99.70 to 99.90)

99.45(99.00 to 99.90)

−0.06[−0.08 to −0.04]

0.30

PH

4

7.43 (7.42 to 7.43)

7.44 (7.43 to 7.44)

−0.01 [−0.02 to 0.00]

0.21

Paw (cmH2O)

4

18.63 (17.00 to 20.00)

19.03 (17.00 to 21.40)

−0.24 [−1.14 to 0.66]

0.60

During one-lung ventilation within 30 min

PaO2 (mmHg)

10

166.90(118.00 to 211.00)

171.2(122.00 to 201.00)

−16.52[−21.98 to -11.05]

<0.01

PaCO2 (mmHg)

10

37.12 (36.10 to 44.20)

36.85(34.20 to 42.20)

0.29 [−0.53 to 1.10]

0.49

PvO2 (mmHg)

7

47.78(44.90 to 54.00)

46.14(44.50 to 51.00)

1.13 [−0.50 to 2.76]

0.17

Qs/Qt (%)

10

33.32 (27.30 to 39.50)

32.77 (26.70 to 40.60)

2.53 [1.35 to 3.72]

<0.01

SvO2 (%)

4

80.53(78.30 to 82.60)

81.58(78.40 to 84.20)

−1.13[−2.74 to 0.48]

0.17

SaO2 (%)

4

97.98(96.80 to 99.30)

97.65(97.30 to 98.00)

0.74[0.33 to 1.15]

<0.01

PH

4

7.43 (7.42 to 7.44)

7.44 (7.42 to 7.46)

−0.01 [−0.02 to 0.001]

0.41

Paw (cmH2O)

4

28.00 (23.00 to 32.50)

27.00 (24.00 to 30.90)

1.95 [1.61 to 2.28]

<0.01

One-lung ventilation more than 30 min

PaO2 (mmHg)

11

162.27(117.00 to 203.00)

168.72(148.00 to 221.00)

−14.23[−20.81 to -7.65]

<0.01

PaCO2 (mmHg)

11

36.61 (33.90 to 44.60)

36.78 (35.00 to 44.20)

−0.22 [−0.96 to 0.53]

0.57

PvO2 (mmHg)

6

44.70(42.60 to 46.10)

44.98(43.40 to 46.60)

−0.61[−2.23 to 1.02]

0.46

Qs/Qt (%)

12

34.40 (33.60 to 42.70)

32.67 (32.10 to 40.90)

2.77 [1.81 to 3.74]

<0.01

SvO2 (%)

6

79.33(77.40 to 81.10)

81.97(78.50 to 83.90)

−2.39[−3.73 to −0.99]

<0.01

SaO2 (%)

6

97.68(96.60 to 98.10)

98.20(97.20 to 99.00)

−0.63[−1.23 to −0.04]

0.04

PH

6

7.43 (7.43 to 7.44)

7.44 (7.41 to 7.46)

0.00 [−0.01 to 0.01]

0.50

Paw (cmH2O)

6

26.80 (24.00 to 32.50)

26.72 (24.00 to 31.40)

0.87 [0.54 to 1.20]

<0.01

Re-two ventilation

PaO2 (mmHg)

7

322.28(173.00 to 482.00)

307.28(168.00 to 407.00)

11.54[−4.25 to 27.34]

0.15

PaCO2 (mmHg)

3

37.8 (34.00 to 46.10)

35.6 (34.90 to 36.90)

−0.60 [−3.03 to 1.83]

0.63

PvO2 (mmHg)

5

47.82(43.00 to 50.00)

48.68(46.20 to 51.00)

0.06[−2.24 to 2.36]

0.96

Qs/Qt (%)

6

18.55(15.30 to 24.50)

20.15(15.50 to 24.80)

−1.27 [−2.73 to 0.20]

0.09

SvO2 (%)

2

81.90(81.50 to 82.30)

85.30(85.30 to 85.30)

−3.62[−6.28 to −0.95]

0.80

SaO2 (%)

2

99.75(99.70 to 99.80)

99.00 (99.00 to 99.00)

0.75[0.52 to 0.98]

0.67

PH

2

7.42 (7.41 to 7.42)

7.42 (7.42 to 7.42)

0.00 [−0.03 to 0.02]

0.77

Paw (cmH2O)

2

19.00 (18.00 to 20.00)

18.00 (18.00 to 18.00)

0.95 [−0.81 to 2.71]

0.29

  1. Data were presented as Mean and rang in bracket