Table 4.

Comparison between both groups before and after SBT regarding blood gases analysis

Parameter	Before SBT			After SBT
	Group I	Group II	P value	Group I	Group II	P value
PH	7.40 ± 04	7.41 ± .05	0.649	7.38 ± .03	7.30 ± .04	< 0.001
PCO2	39.71 ± 4.02	44.97 ± 6.13	< 0.001	42.10 ± 4.30	58.8 ± 12.34	< 0.001
HCO3	24.96 ± 2.79	27.86 ± 5.28	0.036	24.80 ± 2.53	27.72 ± 6.16	0.116
ScVO2	69.50 ± 5.99	69.52 ± 4.51	0.666	69.23 ± 7.98	48.04 ± 8.28	< 0.001