[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100616253":3},{"organization":4,"armGroups":7,"interventions":8,"overallOfficials":7,"centralContacts":12,"locations":18,"responsibleParty":31,"collaborators":7,"id":35,"slug":36,"hasResults":37,"nctId":38,"briefTitle":39,"officialTitle":40,"acronym":7,"eligibilityCriteria":41,"healthyVolunteers":37,"sex":42,"minAge":43,"maxAge":44,"enrollmentInfo":45,"targetDuration":7,"studyType":48,"phases":7,"briefSummary":49,"conditions":50,"keywords":7,"overallStatus":52,"whyStopped":7,"lastUpdateSubmitDate":53,"lastUpdatePostDateStruct":54,"startDateStruct":57,"completionDateStruct":59,"leadSponsor":61,"locationsCount":62},{"fullName":5,"class":6},"Istinye University","OTHER",null,[9],{"type":6,"name":10,"description":11,"armGroupLabels":7,"otherNames":7},"Preoperative ROX Index Assessment","Participants will undergo a preoperative assessment including measurement of the ROX index (SpO₂\u002FFiO₂ divided by respiratory rate) before bariatric surgery. No treatment or study-related intervention will be applied; all perioperative care will follow routine clinical practice.",[13],{"name":14,"role":15,"phone":16,"phoneExt":7,"email":17},"ilke dolgun","CONTACT","+905555485632","ilkeser2004@gmail.com",[19],{"facility":20,"status":7,"city":21,"state":22,"zip":23,"country":24,"countryCode":7,"cosmosGeoPoint":25,"geoPoint":30,"contacts":7},"Istinye Üniversity","Istanbul","Merkez Mahallesi","34250","Turkey (Türkiye)",{"type":26,"coordinates":27},"Point",[28,29],28.94966,41.01384,{"lat":29,"lon":28},{"type":32,"investigatorFullName":33,"investigatorTitle":34,"investigatorAffiliation":5,"oldNameTitle":7,"oldOrganization":7},"PRINCIPAL_INVESTIGATOR","İlke Dolgun","Assoc. prof","100616253","preoperative-rox-index-and-postoperative-hypoxemia-in-bariatric-surgery-100616253",false,"NCT07303205","Preoperative ROX Index and Postoperative Hypoxemia in Bariatric Surgery","Predictive Value of the Preoperative ROX Index for Early Postoperative Hypoxemia in Bariatric Surgery Patients: A Prospective Observational Cohort Study","Inclusion Criteria:\n\n* Adults aged 18-65 years\n* Scheduled for elective bariatric surgery (laparoscopic sleeve gastrectomy or Roux-en-Y gastric bypass)\n* Body mass index (BMI) ≥ 35 kg\u002Fm²\n* ASA physical status I-III\n* Able and willing to provide written informed consent\n\nExclusion Criteria:\n\n* Acute respiratory failure, pneumonia, or active pulmonary infection\n* Receiving oxygen therapy or respiratory support (nasal cannula, CPAP, BiPAP, or high-flow oxygen) preoperatively\n* Preoperative SpO₂ \\\u003C 88% on room air\n* Significant cardiac arrhythmia, severe heart failure (NYHA class III-IV), or hemodynamic instability\n* Pregnancy, active malignancy, or current immunosuppressive therapy\n* Inability to complete postoperative follow-up or early discharge before 12-hour assessment","ALL","18 Years","65 Years",{"count":46,"type":47},80,"ESTIMATED","OBSERVATIONAL","This prospective observational study evaluates whether the preoperative ROX index can predict early postoperative hypoxemia in patients undergoing bariatric surgery. Preoperative ROX measurements, along with ARISCAT and STOP-Bang scores, will be assessed for their association with hypoxemia occurring within the first 12 postoperative hours.",[51],"Hypoxemia","NOT_YET_RECRUITING","2025-12-11",{"date":55,"type":56},"2025-12-24","ACTUAL",{"date":58,"type":47},"2025-12-25",{"date":60,"type":47},"2026-03-01",{"name":5,"class":6},1]