[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"apnea-hypoxia\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:apnea-hypoxia":26},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":23,"conditions":24,"keywords":28,"overallStatus":32,"whyStopped":4,"lastUpdateSubmitDate":33,"lastUpdatePostDateStruct":34,"startDateStruct":37,"completionDateStruct":39,"leadSponsor":41,"locationsCount":5},"100618028","the-effectiveness-of-oxygen-reserve-index-in-early-detection-of-desaturation-in-geriatric-patients-scheduled-for-oncological-surgery-100618028",false,"NCT07326293","The Effectiveness of Oxygen Reserve Index in Early Detection of Desaturation in Geriatric Patients Scheduled for Oncological Surgery","The Effectiveness of Oxygen Reserve Index in Early Detection of Desaturation in Geriatric Patients Scheduled for Oncological Surgery; a Prospective, Observational Study.","Inclusion criteria for the files\u002Frecords\u002Fmaterials to be included in the study:\n\nRecords of patients aged 65 years and older, classified as ASA physical status I-III, who are scheduled for elective oncologic surgery.\n\nExclusion criteria for the files\u002Frecords\u002Fmaterials to be included in the study:\n\nRecords of patients with advanced coronary artery disease; advanced heart failure and\u002For valvular heart disease; carotid artery stenosis; left ventricular ejection fraction below 30%; rapid atrial fibrillation; body mass index (BMI) greater than 35 kg\u002Fm²; anticipated difficult airway; advanced-stage malignancy; or dementia.","ALL","65 Years","100 Years",{"count":20,"type":21},44,"ESTIMATED","OBSERVATIONAL","This prospective observational study aims to evaluate the relationship between the Oxygen Reserve Index (ORI) and tolerable apnea time in geriatric patients undergoing elective oncologic surgery under general anesthesia.\n\nPatients aged 65 years and older will be monitored using standard anesthesia monitoring and Masimo Rainbow SET® Pulse CO-Oximetry during anesthesia induction and tracheal intubation.\n\nTolerable apnea time will be defined as the duration from the end of ventilation after intubation to a decrease in peripheral oxygen saturation (SpO₂) to 94%.\n\nThe primary objective is to assess the association between ORI warning time and tolerable apnea time. Secondary objectives include evaluating the association between ORI values, arterial blood gas parameters at predefined time points, and the Clinical Frailty Scale.",[25,26,27],"Desaturation","Apnea, Hypoxia","Oxygen Reserve Index",[29,30,31],"oxygen reserve indec","geriatric","desaturation","RECRUITING","2026-01-02",{"date":35,"type":36},"2026-01-08","ACTUAL",{"date":38,"type":36},"2025-12-16",{"date":40,"type":21},"2026-02-16",{"name":42,"class":43},"Ankara City Hospital Bilkent","OTHER"]