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Clinical Trial NCT07326293 for Desaturation, Apnea, Hypoxia, Oxygen Reserve Index is recruiting. See the Trial Radar Card View and AI discovery tools for all the details. Or ask anything here. | ||
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The Effectiveness of Oxygen Reserve Index in Early Detection of Desaturation in Geriatric Patients Scheduled for Oncological Surgery 44 Observational
Clinical Trial NCT07326293 is an observational study for Desaturation, Apnea, Hypoxia, Oxygen Reserve Index that is recruiting. It started on December 16, 2025 with plans to enroll 44 participants. Led by Ankara City Hospital Bilkent, it is expected to complete by February 16, 2026. The latest data from ClinicalTrials.gov was last updated on January 8, 2026.
Brief Summary
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.
Patients 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.
Tolerable apne...
Show MoreDetailed Description
This study is a prospective, observational study. Patients aged 65 years and older who are scheduled for elective oncologic surgery at Ankara Bilkent City Hospital will be included. In all patients, the Clinical Frailty Scale will be routinely assessed during the preoperative period.
In this study, tolerable apnea time will be defined as the time until peripheral oxygen saturation (SpO₂), measured by pulse oximetry,...
Show MoreOfficial Title
The Effectiveness of Oxygen Reserve Index in Early Detection of Desaturation in Geriatric Patients Scheduled for Oncological Surgery; a Prospective, Observational Study.
Conditions
DesaturationApnea, HypoxiaOxygen Reserve IndexOther Study IDs
- E2-24-8204
NCT ID Number
Start Date (Actual)
2025-12-16
Last Update Posted
2026-01-08
Completion Date (Estimated)
2026-02-16
Enrollment (Estimated)
44
Study Type
Observational
Status
Recruiting
Keywords
oxygen reserve indec
geriatric
desaturation
geriatric
desaturation
Primary Outcome Measures
| Outcome Measure | Measure Description | Time Frame |
|---|---|---|
The primary outcome measure is the association between Oxygen Reserve Index (ORI) warning time and tolerable apnea time. ORI warning time is defined as the time interval from the onset of the ORI alarm triggered by a downward trend to the decrease of per | The primary outcome measure is the association between Oxygen Reserve Index (ORI) warning time and tolerable apnea time.
ORI warning time is defined as the time interval from the onset of the ORI alarm triggered by a downward trend to the decrease of peripheral oxygen saturation (SpO₂) to 94%.
Tolerable apnea time is defined as the duration from the end of ventilation after tracheal intubation to the decrease of SpO₂ to 94%. | Peri-induction period at predefined time points baseline; after 3 minutes of preoxygenation; after 2 minutes of bag-mask ventilation following intubation; during apnea at SpO₂ 94%; and after 2 minutes of ventilation with 100% oxygen |
Participation Assistant
Eligibility Criteria
Eligible Ages
Older Adult
Minimum Age
65 Years
Eligible Sexes
All
Records of patients aged 65 years and older, classified as ASA physical status I-III, who are scheduled for elective oncologic surgery.
Records of patients with advanced coronary artery disease; advanced heart failure and/or valvular heart disease; carotid artery stenosis; left ventricular ejection fraction below 30%; rapid atrial fibrillation; body mass index (BMI) greater than 35 kg/m²; anticipated difficult airway; advanced-stage malignancy; or dementia.
Ankara City Hospital BilkentStudy Central Contact
Contact: Muhlis Kuru, +905312089322, [email protected]
1 Study Locations in 1 Countries
Çankaya
Ankara Bilkent City Hospital, Ankara, Çankaya, Turkey (Türkiye)
Muhlis Kuru, Contact, +905312089322, [email protected]
Muhlis Kuru, Principal Investigator
Recruiting