Hypothermia Improves Oral and Gastric Mucosal Microvascular Oxygenation during Hemorrhagic Shock in Dogs

Table 2

Metabolic and respiratory variables of the experimental groups.

Variable	Group	Measuring point 1; (0.5 h)	Measuring point 2; (2.5 h)	Measuring point 3; (3.0 h)	Measuring point 4; (3.5 h)
SaO2; [%]	NT	99±1	99±1	99±1	99±1
	HT	99±1	99±1^∗#	99±1^∗	99±1^∗#
	NT/HS	99±1	99±1	98±1^∗	98±1^∗
	HT/HS	99±1	99±1^∗#	98±1^#	98±1^∗#
pCO2; [mmHg]	NT	39±1	39±1	40±1	39±1
	HT	40±1	41±1^∗	40±1	41±1^∗#
	NT/HS	40±1	42±1	45±1^∗	44±1^∗
	HT/HS	39±1	40±1^∗	44±1^∗	43±1^∗
pO2; [mmHg]	NT	160±4	164±1	161±2	164±2
	HT	157±1	159±2^#	156±3	160±3
	NT/HS	155±2	158±2	147±3^∗	151±2
	HT/HS	158±3	163±3	148±2^∗	149±3^∗
PH	NT	7,42 ± 0,01	7,40 ± 0,01*	7,39 ± 0,01*	7,39 ± 0,01*
	HT	7,41 ± 0,01	7,39 ± 0,01*	7,39 ± 0,01	7,38 ± 0,01*
	NT/HS	7,39 ± 0,01	7,38 ± 0,01	7,33 ± 0,01*	7,34 ± 0,01*
	HT/HS	7,41 ± 0,01	7,38 ± 0,01*	7,33 ± 0,01*	7,33 ± 0,01*
Hb; [g·100 mL^−1]	NT	12±1	12±1	12±1	12±1
	HT	13±1	13±1^#	13±1^∗	13±1^#
	NT/HS	12±1	12±1	12±1	12±1
	HT/HS	12±1	13±1	12±1	12±1
Lactate; [mmol·L^−1]	NT	0,6 ± 0,1	0,9 ± 0,1	1,0 ± 0,1	0,9 ± 0,1*
	HT	1,3 ± 0,2^#	1,1 ± 0,2^*#	1,1 ± 0,2^*#	1,1 ± 0,2^*#
	NT/HS	0,9 ± 0,3	1,2 ± 0,2	1,3 ± 0,2	1,2 ± 0,2
	HT/HS	0,8 ± 0,1	0,7 ± 0,1	0,7 ± 0,1^#	0,7 ± 0,1^#

Effect of normothermia (NT), hypothermia (HT), hemorrhage during normothermia (NT/HS), and hemorrhage during hypothermia (HT/HS) on systemic oxygen saturation (SAT), carbon dioxide partial pressure (pCO₂), oxygen partial pressure (pO₂), pH, hemoglobin (Hb), and lactate; data are presented as absolute values, mean ± SE, 𝑛=5, ^∗𝑃<0.05 versus baseline, ^#𝑃<0.05 versus NT for group HT and versus NT/HV for group HT/HV.