ResultsThe difference of HR and MAP between the two groups was statistically significant(P<0.05).From T0 to T5，the HR of the two groups fluctuated significantly over time (P<0.01).From T0 to T5，HR and MAP of the two groups fluctuated significantly(P<0.01)，and those of the group B were more stable than those of the group A(P<0.01).The difference of the time of extubation of catheter，the time of getting out of bed and the time of discharge of the two groups was statistically significant(P<0.001) ......