| |
TLV-VCV
|
OLV-VCV
|
OLV-PCV
|
End of Surgery
|
|---|
| |
n
= 41
|
n
= 41
|
n
= 41
|
n = 41
|
|
VT (mL)
|
562 ± 109
|
377 ± 80a
|
386 ± 82a
|
524 ± 149
|
|
Ppeak (cmH2O)
|
18.7 ± 4.3
|
23.1 ± 4.3a
|
19.9 ± 3.8c
|
17.4 ± 3.5
|
|
Pmean (cmH2O)
|
5.6 ± 3.8
|
9.6 ± 1a
|
9.5 ± 1.3a
|
5.5 ± 1.9
|
|
Pplateau (cmH2O)
|
14.2 ± 3.8
|
16.8 ± 2.5a
|
16 ± 2.7b
|
13 ± 2.7
|
|
pH
|
7.45 ± 0.05
|
7.42 ± 0.04
|
7.43 ± 0.04
|
7.44 ± 0.05
|
|
PaO2 (mmHg)
|
277 ± 97
|
101 ± 52a
|
111 ± 56a
|
293 ± 91
|
|
PaCO2 (mmHg)
|
29.2 ± 4.3
|
32.4 ± 3.7
|
31.6 ± 3.9
|
29.4 ± 4.5
|
|
SaO2 (%)
|
99.3 ± 1
|
95.9 ± 3.2a
|
96.1 ± 3.4a
|
99.4 ± 1.1
|
|
A-aO2 D
|
198 ± 95
|
372 ± 51a
|
363 ± 56a
|
184 ± 89
|
- Data are shown as mean ± SD.
- A-aO2D = Alveolar-arterial oxygen difference; OLV = One-lung ventilation; PaCO2 = arterial carbon dioxide tension; PaO2 = arterial oxygen tension; PCV = Pressure controlled ventilation; Pmean = mean inspiratory pressure; Ppeak = peak inspiratory pressure; Pplateau = plateau inspiratory pressure; SaO2 = arterial oxygen saturation; TLV = Two-lung ventilation; VCV = Volume controlled ventilation; VT = Tidal volume; a
p < 0.001 compared with TLV-VCV; b
p < 0.01 compared with TLV-VCV; c
p < 0.01 compared with OLV-VCV
