Heart rate variability and pulmonary dysfunction in rats subjected to hemorrhagic shock

Table 3 The comparison between the hemoglobin and arterial oxygen pressure and contents in the experimental groups

	Sham	Vag	HS	Vag + HS
Hb (g/dl)	13.69 ± 0.72	14.7 ± 0.69	11.82 ± 0.53	11.19 ± 0.49 ^#
PaO₂–2 (mmHg)	73.24 ± 1.89	68.75 ± 1.25	67.83 ± 1.5	66 ± 1.82 ^*
CaO₂–2 (ml/100 ml blood)	17.82 ± 1.03	18.61 ± 0.82	14.98 ± 0.71	14.09 ± 0.53 ^#*
PvO₂–2 (mmHg)	36.85 ± 1.45	36.25 ± 1.6	31 ± 2.16	27.34 ± 2.13 ^#*
CvO₂–2 (ml/100 ml blood)	13.05 ± 0.68	13.95 ± 0.82	9.02 ± 0.82 ^#*	7.06 ± 1.19 ^#*
PaO₂-PvO₂–2 (mmHg)	36.38 ± 2.78	32.5 ± 0.95	37.4 ± 3.78	39.9 ± 3.60
CaO₂-CvO₂–2 (ml/100 ml blood)	4.76 ± 0.60	4.66 ± 0.55	5.95 ± 1.02	7.57 ± 0.66
PaO₂/FIO₂ratio	348.77 ± 9.01	327.38 ± 5.95	323.01 ± 7.41	314.76 ± 8.69 ^*
Lactate (mmol/L)	13.65 ± 2.23	12.12 ± 2.44	23.48 ± 5.13	22.44 ± 3.94

Data are mean ± SE in the Sham (n = 5), Vag (n = 5), HS (n = 7) and Vag + HS (n = 7) groups. Hb: Hemoglobin concentration, PaO₂–2: arterial oxygen pressure, PvO₂–2: venous oxygen pressure, CaO₂–2: arterial oxygen content and CvO₂–2: venous oxygen content, PaO₂-PvO₂–2: arterial-venous oxygen pressure difference, CaO₂-CvO₂–2: arterial-venous oxygen content difference FIO₂: fractional concentration of oxygen. *P < 0.05 vs. the Sham group; ^#p < 0.05 vs. the Vag group. Barometric pressure: 630 mmHg. Normal PaO₂/FIO₂ ratio: 300 ± 10 mmHg

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