Table 5.

Comparative analysis for each group before and after SBT regarding blood gases

	Group I			Group II
	Before SBT	After SBT	P value	Before SBT	After SBT	P value
PH	7.40 ± .04	7.38 ± .03	0.051	7.41 ± .05	7.30 ± .04	< 0.001
PCO2	39.71 ± 4.02	42.10 ± 4.30	0.001	44.97 ± 6.13	58.80 ± 12.34	< 0.001
HCO3	24.96 ± 2.79	24.80 ± 2.53	0.489	27.86 ± 5.28	27.72 ± 6.16	0.360
ScVO2	69.50 ± 5.99	69.23 ± 7.98	0.581	69.52 ± 4.51	48.04 ± 8.28	< 0.001