[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100623627":3},{"organization":4,"armGroups":7,"interventions":15,"overallOfficials":10,"centralContacts":24,"locations":30,"responsibleParty":56,"collaborators":10,"id":60,"slug":61,"hasResults":62,"nctId":63,"briefTitle":64,"officialTitle":65,"acronym":10,"eligibilityCriteria":66,"healthyVolunteers":67,"sex":68,"minAge":69,"maxAge":70,"enrollmentInfo":71,"targetDuration":10,"studyType":74,"phases":10,"briefSummary":75,"conditions":76,"keywords":10,"overallStatus":33,"whyStopped":10,"lastUpdateSubmitDate":82,"lastUpdatePostDateStruct":83,"startDateStruct":86,"completionDateStruct":88,"leadSponsor":90,"locationsCount":91},{"fullName":5,"class":6},"Ain Shams University","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Study group",null,"Patients scheduled for elective craniotomy surgeries before induction of general anesthesia.",[13,14],"Other: Inferior vena cava collapsibility index","Other: Caval Aorta Index",[16,20],{"type":6,"name":17,"description":18,"armGroupLabels":19,"otherNames":10},"Inferior vena cava collapsibility index","Inferior vena cava (IVC) collapsibility index (IVCCI) will be measured.\n\nThe IVCCI is calculated using the following formula:\n\nIVCCI = (maximum IVC diameter - minimum IVC diameter) \u002F maximum IVC diameter \\* 100",[9],{"type":6,"name":21,"description":22,"armGroupLabels":23,"otherNames":10},"Caval Aorta Index","The Inferior vena cava (IVC): Ao index will be derived by taking the ratio of the maximum IVC diameter during expiration and the maximal abdominal aortic diameter during systole.\n\n\\- The caval aorta index (IVC\u002FAo) is calculated using the following formula: IVC\u002FAo index = IVC diameter \u002F aortic diameter.",[9],[25],{"name":26,"role":27,"phone":28,"phoneExt":10,"email":29},"Verina F Zaref, MSc","CONTACT","00201098858385","verina.fares@med.asu.edu.eg",[31],{"facility":32,"status":33,"city":34,"state":10,"zip":35,"country":36,"countryCode":37,"cosmosGeoPoint":38,"geoPoint":43,"contacts":44},"Ain Shams University Hospitals","RECRUITING","Cairo","11591","Egypt","EG",{"type":39,"coordinates":40},"Point",[41,42],31.24967,30.06263,{"lat":42,"lon":41},[45,47,50,52,54],{"name":46,"role":27,"phone":28,"phoneExt":10,"email":29},"Verina F Bekheet, MSc",{"name":48,"role":49,"phone":10,"phoneExt":10,"email":10},"Sherif W Sarguios, MD","SUB_INVESTIGATOR",{"name":51,"role":49,"phone":10,"phoneExt":10,"email":10},"Dalia A Mohamed, MD",{"name":53,"role":49,"phone":10,"phoneExt":10,"email":10},"Noha M EL-Tobgy, MD",{"name":55,"role":49,"phone":10,"phoneExt":10,"email":10},"Mai M Elhefny, MD",{"type":57,"investigatorFullName":58,"investigatorTitle":59,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Verina Fares Zaref Bekheet","Assistant Lecturer of Anesthesia, Intensive Care and Pain Management, Ain Shams University, Cairo, Egypt","100623627","preoperative-evaluation-of-ivc-collapsibility-index-and-caval-aorta-index-after-induction-of-general-anesthesia-100623627",false,"NCT07399093","Preoperative Evaluation of IVC Collapsibility Index and Caval Aorta Index After Induction of General Anesthesia","Preoperative Evaluation of IVC Collapsibility Index and Caval Aorta Index for Prediction of Hypotension After Induction of General Anesthesia in Patients Undergoing Craniotomy Surgeries","Inclusion Criteria:\n\n* Age from 18 to 40 years.\n* Both sexes.\n* Body Mass Index\\\u003C 40 kg\u002Fm².\n* American Society of Anesthesiologists (ASA) physical status I, II.\n* Fasted according to the ASA guidelines: 2 hours for clear fluids, 6 hours after light meal, 8 hours after a full meal with high calorie or fat content.\n* Scheduled for elective craniotomy surgeries before induction of general anesthesia.\n\nExclusion Criteria:\n\n* Current or recent pregnancy (within 3 months).\n* Pre-existing cardiac disease or hypertension.\n* On medications affecting blood pressure \\[Beta-blockers (BBs) and calcium channel blockers (CCBs)\\] .\n* Refusing to undergo the study.",true,"ALL","18 Years","40 Years",{"count":72,"type":73},36,"ESTIMATED","OBSERVATIONAL","This study aims to assess the accuracy, repeatability, and reproducibility of preoperative evaluation of Inferior Vena Cava (IVC) collapsibility index and caval aorta index for prediction of hypotension after induction of general anesthesia.",[77,78,21,79,80,81],"Inferior Vena Cava","Collapsibility Index","Induction","General Anesthesia","Craniotomy","2026-02-05",{"date":84,"type":85},"2026-02-10","ACTUAL",{"date":87,"type":85},"2024-01-14",{"date":89,"type":73},"2026-03-01",{"name":5,"class":6},1]