Table 3.

Respiratory and Circulatory Indexes at Different Time Points in the Two Groups

Groups	Time points	MAP	HR	SPO2
Group B	Pre-operative	92.80±11.89	78.82±12.74	98.33±1.38
	Intra-operative	71.31±8.11a	76.49±10.02a	96.69±1.70a
	Post-operative	82.98±9.20ab	77.96±10.67	97.73±1.03b
Group U	Pre-operative	91.38±11.06	80.13±11.31	98.22±1.36
	Intra-operative	71.40±9.43a	76.84±10.38a	91.42±2.14ac
	Post-operative	83.53±9.56ab	78.56±10.59	95.04±1.48abc

Notes: Compared with the pre-operative value (baseline value), ^a p < 0.05; Compared with the intra-operative value ^b p < 0.05; Compared with the values of group B at each corresponding time point ^c p<0.05.