[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100631139":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":19,"centralContacts":23,"locations":32,"responsibleParty":44,"collaborators":10,"id":47,"slug":48,"hasResults":49,"nctId":50,"briefTitle":51,"officialTitle":51,"acronym":10,"eligibilityCriteria":52,"healthyVolunteers":49,"sex":53,"minAge":54,"maxAge":55,"enrollmentInfo":56,"targetDuration":59,"studyType":60,"phases":10,"briefSummary":61,"conditions":62,"keywords":66,"overallStatus":73,"whyStopped":10,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":83},{"fullName":5,"class":6},"Ankara City Hospital Bilkent","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Preeclamptic Parturients Undergoing Cesarean Section",null,"Preeclamptic pregnant women aged 18-45 years with ASA physical status II-III and gestational age ≥28 weeks who are scheduled for cesarean delivery under spinal anesthesia, with cesarean urgency classified as Lucas category 3-4. Preoperative internal jugular vein collapsibility index (IJVCI) will be measured using ultrasonography before spinal anesthesia, and participants will be followed for the development of spinal anesthesia-associated hypotension within the first 20 minutes after spinal anesthesia.",[13],"Other: Internal Jugular Vein Collapsibility Index Measurement",[15],{"type":6,"name":16,"description":17,"armGroupLabels":18,"otherNames":10},"Internal Jugular Vein Collapsibility Index Measurement","Preoperative ultrasonographic measurement of the internal jugular vein collapsibility index (IJVCI) performed before spinal anesthesia in preeclamptic parturients (gestational age ≥28 weeks) undergoing cesarean delivery classified as Lucas category 3-4.",[9],[20],{"name":21,"affiliation":5,"role":22},"Nihan Aydin Guzey, MD, PhD","PRINCIPAL_INVESTIGATOR",[24,28],{"name":21,"role":25,"phone":26,"phoneExt":10,"email":27},"CONTACT","+905056496231","nihanaydinguzey@gmail.com",{"name":29,"role":25,"phone":30,"phoneExt":10,"email":31},"Basak Mizrak Demirbuken, MD","+90509464248","basakmizrak@gmail.com",[33],{"facility":34,"status":10,"city":35,"state":35,"zip":36,"country":37,"countryCode":10,"cosmosGeoPoint":38,"geoPoint":43,"contacts":10},"Ankara Bilkent City Hospital","Ankara","06800","Turkey (Türkiye)",{"type":39,"coordinates":40},"Point",[41,42],32.85427,39.91987,{"lat":42,"lon":41},{"type":22,"investigatorFullName":45,"investigatorTitle":46,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Nihan Aydin Guzey","Associate Professor Nihan Aydin Guzey","100631139","investigation-of-the-role-of-internal-jugular-vein-collapsibility-index-in-predicting-spinal-anesthesia-induced-hypotension-in-preeclamptic-parturients-100631139",false,"NCT07496788","Investigation of the Role of Internal Jugular Vein Collapsibility Index in Predicting Spinal Anesthesia-Induced Hypotension in Preeclamptic Parturients","Inclusion Criteria:\n\n* Age between 18 and 45 years\n* ASA physical status II-III\n* Diagnosed with preeclampsia\n* Scheduled for cesarean delivery under spinal anesthesia with cesarean urgency classified as Lucas category 3-4\n* Gestational age ≥28 weeks\n* Provided written informed consent\n\nExclusion Criteria:\n\n* Cesarean urgency classified as Lucas category 1-2\n* Gestational age \\\u003C28 weeks\n* ASA physical status ≥ IV\n* Known renal disease\n* Cardiac instability or known arrhythmia\n* Requirement of general anesthesia or sedation\n* Inability to provide informed consent","FEMALE","18 Years","45 Years",{"count":57,"type":58},96,"ESTIMATED","1 Day","OBSERVATIONAL","This prospective, single-center observational study aims to evaluate the predictive value of the internal jugular vein collapsibility index (IJVCI) for spinal anesthesia-associated hypotension in preeclamptic parturients (gestational age ≥28 weeks) undergoing cesarean delivery classified as Lucas category 3-4. Preoperative IJVCI will be measured using ultrasonography before spinal anesthesia during spontaneous and deep respiration. The incidence of hypotension within the first 20 minutes after spinal anesthesia will be recorded. The diagnostic performance of IJVCI in predicting hypotension will be analyzed.",[63,64,65],"Spinal Anesthesia-Induced Hypotension","Preeclampsia","Cesarean Section",[64,67,68,69,70,65,71,72],"Spinal Anesthesia","Hypotension","Internal Jugular Vein","Collapsibility Index","Ultrasonography","Hemodynamic Monitoring","NOT_YET_RECRUITING","2026-03-23",{"date":76,"type":77},"2026-03-27","ACTUAL",{"date":79,"type":58},"2026-05-01",{"date":81,"type":58},"2026-07-25",{"name":5,"class":6},1]