Comparison of the Effects of Remimazolam and Midazolam on Cognitive Function and Quantitative Electroencephalography Indicators in Elderly Patients Undergoing Hip Replacement/HUANG Wanhong， CHEN Qiulin.//Medical Innovation of China，2025，22(17)： 043-047

    [Abstract]Objective： To investigate and compare the efects of Remimazolam and Midazolam on cognitive functionandquantitative electroencephalography indicators in elderly patients undergoing hipreplacement.Method：A totalof140 elderlypatientsunderwent hipreplacement in theFirstAfiliated Hospital of XiamenUniversity from October 2O22 to December 2O24 were divided into groupAand group Baccording to the random number table，with 70 cases ineach group.IngroupA，Midazolam，Propofol，Sufentanil and Cisatracurium were used foranesthesia induction，and idazolam，Propofol，CisatracuriumandRemifentanil wereusedforanesthesia maintenance.IngroupB， Midazolam in group A was replaced by Remimazolam.The incidence of postoperative cognitive dysfunction， perioperative hemodynamic indicators [mean arterial pressure (MAP)，heart rate (HR)]，serum indicators [S100 calcium-bindingprotein β(S100β) ......