Figure 2.

Dexmedetomidine influences the changes of MAP and HR in perioperation. (a) MAP (mean arterial pressure); (b) HR (heart rate). T1, before administration of Dex (dexmedetomidine); T2, before induction; T3, after tracheal intubation; T4, after incision; T5, before reperfusion; T6, 5 mins after reperfusion; T7, after tracheal extubation. ^∗P < 0.05 compared between two groups, ^#P < 0.05 vs. T1 in Dex group, and ^&P < 0.05 vs. T1 in Con group. Dex: group administrated with dexmedetomidine; Con: control group received saline.