Intravenous Infusion of Dexmedetomidine Combined Isoflurane Inhalation Reduces Oxidative Stress and Potentiates Hypoxia Pulmonary Vasoconstriction during One-Lung Ventilation in Patients
Table 2
Perioperative time-course changes of blood gas variables in DISO group ( = 25) and NISO group () ().
Parameters
Group
TLV-15 min
OLV-10 min
OLV-20 min
OLV-30 min
OLV-40 min
pH
DISO
7.37 ± 0.04
7.38 ± 0.03
7.39 ± 0.04
7.40 ± 0.03
7.39 ± 0.04
NISO
7.37 ± 0.04
7.38 ± 0.03
7.39 ± 0.04
7.40 ± 0.03
7.39 ± 0.04
Hb (mg/L)
DISO
118.5 ± 10.7
116.9 ± 12.5
117.5 ± 11.6
116.1 ± 14.2
115.3 ± 12.5
NISO
117.4 ± 12.4
117.0 ± 12.3
116.9 ± 14.3
115.9 ± 12.7
115.1 ± 13.4
Qs/Qt (%)
DISO
11.5 ± 1.8
23.5 ± 2.9ab
25.3 ± 2.3ab
27.1 ± 2.1ab
23.5 ± 2.2ab
NISO
12.0 ± 1.1
28.1 ± 2.5a
30.1 ± 2.0a
31.9 ± 1.9a
27.7 ± 2.0a
PaCO2 (mmHg)
DISO
34.8 ± 3.2
35.0 ± 3.1
35.1 ± 3.9
35.3 ± 4.1
35.1 ± 3.3
NISO
35.2 ± 3.1
35.7 ± 4.5
36.0 ± 3.7
35.7 ± 4.0
35.5 ± 4.2
SaO2 (%)
DISO
99.7 ± 0.1
99.0 ± 1.2
98.7 ± 0.3
98.4 ± 0.8
99.3 ± 0.5
NISO
99.7 ± 0.4
98.9 ± 0.7
98.4 ± 1.1
97.5 ± 1.5
99.2 ± 0.6
ScvO2 (%)
DISO
84.9 ± 9.1
84.5 ± 8.5
83.5 ± 6.9
82.2 ± 9.2
84.4 ± 5.9
NISO
84.5 ± 8.5
83.6 ± 7.1
81.7 ± 7.3
80.7 ± 9.4
82.7 ± 5.5
HR (beats/min)
DISO
66.3 ± 9.2b
65.5 ± 13.1b
67.5 ± 12.1b
68.7 ± 11.2b
67.6 ± 11.3b
NISO
77.5 ± 10.5
78.2 ± 12.8
78.7 ± 13.3
81.5 ± 14.1
78.4 ± 14.3
MAP (mmHg)
DISO
78.9 ± 17.2
77.2 ± 12.5
76.1 ± 10.5
75.0 ± 16.2
76.6 ± 13.4
NISO
81.1 ± 15.7
79.1 ± 14.2
79.1 ± 14.7
77.5 ± 17.1
77.9 ± 15.3
PaO2 (mmHg)
DISO
457.5 ± 85.2
258.6 ± 68.6ab
198.5 ± 68.3ab
185.6 ± 73.2ab
209.6 ± 85.1ab
NISO
461.5 ± 87.5
223.5 ± 89.7a
165.2 ± 75.3a
151.3 ± 68.5a
171.6 ± 88.9a
< 0.05 versus TLV-15 min; < 0.05 versus NISO group.