Table 1.

Blood gas, pH, glucose and lactate concentrations before and after 30 min of global cerebral ischemia in the ischemia-normothermia, ischemia-48 h hypothermia, and ischemia-72 h hypothermia groups.

	Baseline	2 h	4 h	6 h	1 day	2 days	7 days
pH
Normothermia	7.38 ± 0.01	7.36 ± 0.01	7.38 ± 0.01	7.39 ± 0.01	7.35 ± 0.02	7.39 ± 0.01	7.44 ± 0.01
48 h hypo	7.37 ± 0.01	7.34 ± 0.01	7.37 ± 0.01	7.38 ± 0.01	7.37 ± 0.01	7.38 ± 0.01	7.32 ± 0.01
72 h hypo	7.38 ± 0.01	7.37 ± 0.01	7.38 ± 0.01	7.41 ± 0.01	7.40 ± 0.01	7.41 ± 0.01	7.37 ± 0.01
PaCO2 (mmHg)
Normothermia	48.1 ± 1.0	49.1 ± 1.2	48.6 ± 1.4	48.6 ± 1.4	50.7 ± 1.7	50.1 ± 0.9	53.9 ± 0.6
48 h hypo	48.9 ± 1.3	47.5 ± 1.3	46.3 ± 0.8	47.4 ± 1.2	45.1 ± 1.4	46.8 ± 1.0	51.9 ± 1.4
72 h hypo	50.9 ± 0.6	49.5 ± 1.4	47.5 ± 1.3	47.5 ± 1.2	50.8 ± 1.3	49.6 ± 1.2	52.9 ± 1.4
PaO2 (mmHg)
Normothermia	20.9 ± 1.5	20.8 ± 1.3	21.4 ± 1.6	20.0 ± 1.6	18.8 ± 1.5	21.2 ± 1.7	20.5 ± 1.5
48 h hypo	21.8 ± 1.0	21.3 ± 1.3	20.6 ± 1.7	20.1 ± 1.5	21.0 ± 1.4	20.0 ± 2.0	22.3 ± 1.6
72 h hypo	22.3 ± 0.9	23.1 ± 0.7	22.4 ± 1.1	22.0 ± 1.0	21.0 ± 1.5	22.1 ± 1.1	21.3 ± 0.8
Lactate (mmol/L)
Normothermia	1.3 ± 0.1	3.6 ± 0.6*	2.9 ± 0.5	2.4 ± 0.4	3.9 ± 0.9*	2.1 ± 0.6	1.4 ± 0.2
48 h hypo	1.2 ± 0.0	2.9 ± 0.4*	3.1 ± 0.5*	2.5 ± 0.4*	2.3 ± 0.4	2.6 ± 0.4*	1.0 ± 0.1
72 h hypo	1.1 ± 0.1	2.5 ± 0.4*	2.5 ± 0.3*	2.0 ± 0.3	1.8 ± 0.4	1.5 ± 0.3	1.0 ± 0.1
Glucose (mmol/L)
Normothermia	0.9 ± 0.0	1.3 ± 0.1*	1.2 ± 0.1*	1.2 ± 0.1*	1.4 ± 0.1*	1.2 ± 0.1	0.9 ± 0.1
48 h hypo	0.8 ± 0.0	1.2 ± 0.1*	1.3 ± 0.1*	1.3 ± 0.1*	1.1 ± 0.1	1.3 ± 0.1*	0.7 ± 0.1
72 h hypo	1.0 ± 0.0	1.4 ± 0.1*	1.5 ± 0.1*	1.4 ± 0.1*	1.4 ± 0.1*	1.3 ± 0.1	0.9 ± 0.1

Normothermia: ischemia-normothermia (n = 8); 48 h hypo: ischemia-48 h hypothermia (n = 8); 72 h hypo: ischemia-72 h hypothermia (n = 8).

^*p < 0.05 vs. baseline.