[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100595359":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":12,"locations":18,"responsibleParty":48,"collaborators":50,"id":55,"slug":56,"hasResults":57,"nctId":58,"briefTitle":59,"officialTitle":60,"acronym":61,"eligibilityCriteria":62,"healthyVolunteers":57,"sex":63,"minAge":64,"maxAge":10,"enrollmentInfo":65,"targetDuration":10,"studyType":68,"phases":10,"briefSummary":69,"conditions":70,"keywords":73,"overallStatus":78,"whyStopped":10,"lastUpdateSubmitDate":79,"lastUpdatePostDateStruct":80,"startDateStruct":83,"completionDateStruct":85,"leadSponsor":87,"locationsCount":88},{"fullName":5,"class":6},"Insel Gruppe AG, University Hospital Bern","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":10},"Patients over 60 requiring general anesthesia",null,"The group in focus in this study are patients aged over 60 requiring general anesthesia for elective surgery",[13],{"name":14,"role":15,"phone":16,"phoneExt":10,"email":17},"Darren Hight, PhD.","CONTACT","+41 78 719 03 01","darren.hight@insel.ch",[19,37],{"facility":20,"status":10,"city":21,"state":22,"zip":23,"country":24,"countryCode":25,"cosmosGeoPoint":26,"geoPoint":31,"contacts":32},"Hirslanden Clinic Aarau","Aarau","Aagrau","5001","Switzerland","CH",{"type":27,"coordinates":28},"Point",[29,30],8.04422,47.39254,{"lat":30,"lon":29},[33],{"name":34,"role":15,"phone":35,"phoneExt":10,"email":36},"Heiko A Kaiser, Prof. Dr. med.","+41 62 836 71 50","heiko.kaiser@hirslanden.ch",{"facility":38,"status":10,"city":21,"state":39,"zip":23,"country":24,"countryCode":25,"cosmosGeoPoint":40,"geoPoint":42,"contacts":43},"Cantonal Hospital of Aarau","Canton of Aargau",{"type":27,"coordinates":41},[29,30],{"lat":30,"lon":29},[44],{"name":45,"role":15,"phone":46,"phoneExt":10,"email":47},"Anita Lüthy, Dr. med.","+41 62 838 5594","anita.luethy@ksa.ch",{"type":49,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR",[51,53],{"name":52,"class":6},"Kantonsspital Aarau",{"name":20,"class":54},"UNKNOWN","100595359","incidence-of-slow-delta-eeg-frequencies-01-1-hz-before-burst-suppression-100595359",false,"NCT07031427","Incidence of Slow Delta EEG Frequencies (0.1-1 Hz) Before Burst Suppression","Incidence of Slow Delta EEG Frequencies (0.1-1 Hz) Before Burst Suppression: A Prospective Observational Pilot Study","SLOWWAVE","Inclusion Criteria:\n\n* patients undergoing elective general anaesthesia, and\n* aged 60 or above, and\n* have a good comprehension of German, and\n* require a general anaesthesia length of at least 1 hour (to ensure that we can record enough good quality EEG signal).\n\nExclusion Criteria:\n\n* patients undergoing head or neck surgery or surgery in prone or lateral decubitus position (due to the limited placement space on the forehead required for the two EEG electrode systems, limited access to the forehead during surgery), or\n* patients undergoing emergency surgery, operations only requiring local or regional anaesthesia with sedation, or\n* patients who cannot follow procedures, or have an inability to give consent, or\n* known participation in another human research project (ClinO\u002FHRO) that may affect the objectives of this study.","ALL","60 Years",{"count":66,"type":67},30,"ESTIMATED","OBSERVATIONAL","The electroencephalogram (EEG) measures brain waves during general anaesthesia via an electrode placed on the forehead. These brain waves show the different stages of natural sleep as well as the state of the brain when a patient is put under general anaesthesia for an operation. In this research project, the investigators aim to find out if the EEG signal shows slow wave activity (where an EEG wave repeats every 10 to 1 seconds) just before the onset of the burst suppression pattern, where the EEG waveform alternates between very small (suppression) and very large (burst) signals over a period of a few seconds. It is not currently known if and how often this occurs, but if it does, it would be a useful signal to help anaesthetists administer just the right dose of anaesthesia to patients.",[71,72],"Burst Suppression","Anesthesia",[74,75,71,76,77],"Electroencephalogram (EEG)","General Anesthesia","Delta power","Slowwave power","NOT_YET_RECRUITING","2025-06-23",{"date":81,"type":82},"2025-06-27","ACTUAL",{"date":84,"type":67},"2025-07-01",{"date":86,"type":67},"2025-12",{"name":5,"class":6},2]