Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12871-022-01805-3/MediaObjects/12871_2022_1805_Fig4_HTML.png)
Average MAP. Compared with AP group, ***P < 0.001. The average MAP was presented as mean ± SD. Abbreviations: AP alfentanil and propofol; AR1 alfentanil and remimazolam (0.1 mg/kg); AR2 alfentanil and remimazolam (0.15 mg/kg); AR3 alfentanil and remimazolam (0.2 mg/kg)Â