BIS value in groups
The changes in BIS value showed a downward trend from T0-T4 in remimazolam group and propofol group, and both rise in reflex at T5. The statistics show that the BIS value of P group was lower than that of R group(
BIS value changes at post-induction of anesthesia(T1), loss of consciousness(T2), every 1 min for 2 min after loss of consciousness(T3-T4) and pre-intubation(T5). Data are expressed as mean ± standard deviation. *