Table 3.

Comparisons of CPB time and operation time among the 3 groups.

Items	Group	Mean ± Standard Deviation	P value
CPB time (min)	ETO	47.15±19.447	0.083
	DEX	55.56±19.673
	CON	53.32±19.870
Aortic clamp time (min)	ETO	27.97±15.791	0.121
	DEX	35.19±13.703
	CON	30.73±15.339
Operation time (min)	ETO	122.27±31.026	0.145
	DEX	132.65±25.173
	CON	134.24±28.476
Lowest temperature (°C)	ETO	31.44±2.13	0.024*
	DEX	33.75±3.47
	CON	32.01±2.41

^*P<0.05, the lowest temperature during CPB in group DEX was significantly higher than those in group ETO and group CON.