[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100053505":3},{"organization":4,"armGroups":7,"interventions":31,"overallOfficials":37,"centralContacts":54,"locations":60,"responsibleParty":75,"collaborators":37,"id":79,"slug":80,"hasResults":81,"nctId":82,"briefTitle":83,"officialTitle":83,"acronym":37,"eligibilityCriteria":84,"healthyVolunteers":81,"sex":85,"minAge":86,"maxAge":87,"enrollmentInfo":88,"targetDuration":37,"studyType":91,"phases":92,"briefSummary":94,"conditions":95,"keywords":98,"overallStatus":102,"whyStopped":37,"lastUpdateSubmitDate":103,"lastUpdatePostDateStruct":104,"startDateStruct":107,"completionDateStruct":109,"leadSponsor":111,"locationsCount":112},{"fullName":5,"class":6},"China-Japan Friendship Hospital","OTHER",[8,15,21,26],{"label":9,"type":10,"description":11,"interventionNames":12},"Control Group","ACTIVE_COMPARATOR","Participants receive standardized propofol-remifentanil total intravenous anesthesia without administration of the study adjunct anesthetic drug.",[13,14],"Drug: Propofol","Drug: Remifentanil",{"label":16,"type":17,"description":18,"interventionNames":19},"Midazolam Group","EXPERIMENTAL","Participants receive standardized propofol-remifentanil total intravenous anesthesia plus midazolam according to the study protocol.",[20,13,14],"Drug: Midazolam",{"label":22,"type":17,"description":23,"interventionNames":24},"Dexmedetomidine Group","Participants receive standardized propofol-remifentanil total intravenous anesthesia plus dexmedetomidine according to the study protocol.",[25,13,14],"Drug: Dexmedetomidine",{"label":27,"type":17,"description":28,"interventionNames":29},"Esketamine Group","Participants receive standardized propofol-remifentanil total intravenous anesthesia plus esketamine according to the study protocol.",[30,13,14],"Drug: Esketamine",[32,38,42,46,50],{"type":33,"name":34,"description":35,"armGroupLabels":36,"otherNames":37},"DRUG","Midazolam","Midazolam administered as an adjunct to standardized propofol-remifentanil total intravenous anesthesia according to the study protocol.",[16],null,{"type":33,"name":39,"description":40,"armGroupLabels":41,"otherNames":37},"Dexmedetomidine","Dexmedetomidine administered as an adjunct to standardized propofol-remifentanil total intravenous anesthesia according to the study protocol.",[22],{"type":33,"name":43,"description":44,"armGroupLabels":45,"otherNames":37},"Esketamine","Esketamine administered as an adjunct to standardized propofol-remifentanil total intravenous anesthesia according to the study protocol.",[27],{"type":33,"name":47,"description":48,"armGroupLabels":49,"otherNames":37},"Propofol","Propofol will be administered as part of standardized total intravenous anesthesia in all study groups.",[9,22,27,16],{"type":33,"name":51,"description":52,"armGroupLabels":53,"otherNames":37},"Remifentanil","Remifentanil will be administered as part of standardized total intravenous anesthesia in all study groups.",[9,22,27,16],[55],{"name":56,"role":57,"phone":58,"phoneExt":37,"email":59},"Li","CONTACT","+86-15811578082","lizhao2001@aliyun.com",[61],{"facility":5,"status":37,"city":62,"state":63,"zip":64,"country":65,"countryCode":66,"cosmosGeoPoint":67,"geoPoint":72,"contacts":73},"Beijing","Beijing Municipality","100029","China","CN",{"type":68,"coordinates":69},"Point",[70,71],116.39723,39.9075,{"lat":71,"lon":70},[74],{"name":56,"role":57,"phone":58,"phoneExt":37,"email":59},{"type":76,"investigatorFullName":77,"investigatorTitle":78,"investigatorAffiliation":5,"oldNameTitle":37,"oldOrganization":37},"PRINCIPAL_INVESTIGATOR","Li Zhao","Principal Investigator","100053505","the-effects-of-midazolam-dexmedetomidine-and-esketamine-on-bispectral-index-and-raw-electroencephalogram-in-patients-under-propofol-remifentanil-baseline-anesthesia-100053505",false,"NCT07699523","The Effects of Midazolam, Dexmedetomidine, and Esketamine on Bispectral Index and Raw Electroencephalogram in Patients Under Propofol-Remifentanil Baseline Anesthesia","Inclusion Criteria:\n\n1. ASA physical status I-II;\n2. BMI 18-28 kg\u002Fm²;\n3. Scheduled for elective laparoscopic cholecystectomy, with an expected surgical duration from skin incision to completion of wound closure of ≥45 min;\n4. Planned to receive propofol-remifentanil total intravenous anesthesia, with routine intraoperative BIS monitoring and simultaneous acquisition of raw EEG signals;\n5. Voluntarily agrees to participate in this study, has signed the informed consent form, and is able to cooperate with the intervention and assessment procedures.\n\nExclusion Criteria:\n\n1. A confirmed history of psychiatric or neurological disorders, or use of antipsychotics, antidepressants, benzodiazepines, or other sedative-hypnotic drugs within 4 weeks before surgery;\n2. Cognitive impairment identified by Mini-Cog screening;\n3. Poorly controlled or untreated hypertension, sinus bradycardia, or severe cardiac conduction block;\n4. Acute angle-closure glaucoma;\n5. Known allergy to any required anesthetic drug;\n6. Difficulty in electrode placement or any condition that may interfere with EEG monitoring.","ALL","18 Years","65 Years",{"count":89,"type":90},120,"ESTIMATED","INTERVENTIONAL",[93],"NA","This prospective, single-center, randomized interventional study aims to investigate the effects of commonly used adjunct anesthetic drugs on the Bispectral Index (BIS) and electroencephalographic (EEG) activity during total intravenous anesthesia.\n\nBIS monitoring is widely used to estimate the depth of anesthesia. However, previous studies suggest that certain anesthetic drugs, particularly dexmedetomidine and esketamine, may alter BIS values independently of the patient's actual level of consciousness. As a result, BIS readings may not always accurately reflect anesthetic depth when multiple drugs are administered together.\n\nAdult patients undergoing elective laparoscopic cholecystectomy under standardized propofol-remifentanil anesthesia will be randomly assigned to receive one of the following adjunct drugs: midazolam, dexmedetomidine, esketamine, or no additional study drug (control group). Continuous BIS values and raw EEG signals will be recorded throughout the study period.\n\nThe primary objective is to compare changes in BIS values among different adjunct anesthetic drugs under otherwise similar anesthetic conditions. The study will also explore corresponding EEG characteristics associated with these changes. The findings are expected to improve understanding of drug-related differences in processed EEG monitoring and provide data for future development of more accurate anesthesia depth assessment methods.",[96,97],"Depth of Anesthesia Monitoring","BIS-EEG",[99,100,34,39,43,101],"Bispectral Index","Electroencephalography","Total Intravenous Anesthesia","NOT_YET_RECRUITING","2026-07-08",{"date":105,"type":106},"2026-07-13","ACTUAL",{"date":108,"type":90},"2026-06-30",{"date":110,"type":90},"2027-12-30",{"name":5,"class":6},1]