An observational study in Oxygen Reserve Index, sponsored by Sakarya University. Completed at 1 site in Turkey. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-10-18.
Sponsored by Sakarya University · Observational
Our primary objective is to determine whether oxygen reserve index ORI can be a reliable and sensitive indicator of hypoxia and hyperoxia in low-flow anesthesia settings. Our secondary objective is to investigate the ORI changes during preoxygenation stage.
Sakarya University is the lead sponsor of 178 studies on the registry; 48 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients undergoing elective ear, nose, throat surgery.
Exclusion Criteria:
High Flow Anesthesia Group
Device: Oxygen reserve index
Minimal Flow Anesthesia Group
Device: Oxygen reserve index
Measuring oxygen reserve index during preoxygenation and under general anesthesia
Oxygen Reserve Index Value
The Oxygen Reserve Index (ORI) is a real-time monitoring measure that captures the oxygen reserve status in the moderate hyperoxic range (PaO2 approximately 100 to 200 mmHg). ORI provides early warning of potential oxygenation disturbances before any changes occur in SpO2 and indicates the response to oxygen therapy. ORI ranges from 1 (high reserve) to 0 (no reserve) and measures changes in mixed venous oxygen saturation (SvO2) optically after arterial oxygen saturation reaches 100%.
Time frame: For each patient, from preoxygenation stage to the end of the general anesthesia
Plan to share: Undecided
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This study is completed, as verified in Oct 2024. You cannot join it, but the record below documents what was studied.
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Sakarya University