Figure 3

Changes in mean artery pressure (MAP) (mmHg) (A) and heart rate (HR) (beat per minute) (B) of four groups at time points of baseline, before and after skin incision, drilling, sawing skull bone and skin closure. *P < 0.05.

Changes in mean artery pressure (MAP) (mmHg) (A) and heart rate (HR) (beat per minute) (B) of four groups at time points of baseline, before and after skin incision, drilling, sawing skull bone and skin closure. *P < 0.05.