[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100648610":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":12,"locations":10,"responsibleParty":18,"collaborators":10,"id":22,"slug":23,"hasResults":24,"nctId":25,"briefTitle":26,"officialTitle":27,"acronym":10,"eligibilityCriteria":28,"healthyVolunteers":24,"sex":29,"minAge":30,"maxAge":31,"enrollmentInfo":32,"targetDuration":10,"studyType":35,"phases":10,"briefSummary":36,"conditions":37,"keywords":10,"overallStatus":39,"whyStopped":10,"lastUpdateSubmitDate":40,"lastUpdatePostDateStruct":41,"startDateStruct":44,"completionDateStruct":46,"leadSponsor":48,"locationsCount":10},{"fullName":5,"class":6},"Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":10},"Adult patients undergoing elective prone spinal surgery",null,"Adult patients undergoing elective spinal surgery in the prone position under general anesthesia. Preoperative ultrasonographic abdominal subcutaneous fat thickness and intraoperative respiratory mechanics will be evaluated.",[13],{"name":14,"role":15,"phone":16,"phoneExt":10,"email":17},"yadigar YILMAZ","CONTACT","0090 (216) 542 2020","dryadigaryilmaz@gmail.com",{"type":19,"investigatorFullName":20,"investigatorTitle":21,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Yadigar Yılmaz","MD","100648610","ultrasonographic-abdominal-fat-thickness-and-driving-pressure-during-prone-spinal-surgery-100648610",false,"NCT07723690","Ultrasonographic Abdominal Fat Thickness and Driving Pressure During Prone Spinal Surgery","Association Between Ultrasonographic Abdominal Subcutaneous Fat Thickness and Intraoperative Driving Pressure in Adult Patients Undergoing Elective Prone Spinal Surgery: A Prospective Observational Study","Inclusion Criteria:\n\nAdults aged 18 years or older Elective spinal surgery General anesthesia Prone position ASA physical status I-III Body mass index 18.5-39.9 kg\u002Fm²\n\nExclusion Criteria:\n\nEmergency surgery Pregnancy Severe restrictive or obstructive pulmonary disease Hemodynamic instability Body mass index \\\u003C18.5 or ≥40 kg\u002Fm² Incomplete study measurements","ALL","18 Years","65 Years",{"count":33,"type":34},120,"ESTIMATED","OBSERVATIONAL","This prospective observational study aims to evaluate the association between preoperative abdominal subcutaneous fat thickness measured by ultrasonography and intraoperative driving pressure in adult patients undergoing elective spinal surgery in the prone position under general anesthesia. Anthropometric measurements including body mass index, waist circumference, waist-to-height ratio, and neck circumference will also be evaluated for their association with respiratory mechanics. No additional intervention beyond routine clinical care will be performed.",[38],"Respiratory Mechanics","NOT_YET_RECRUITING","2026-07-19",{"date":42,"type":43},"2026-07-23","ACTUAL",{"date":45,"type":34},"2026-07-30",{"date":47,"type":34},"2026-11-30",{"name":5,"class":6}]