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The Effectiveness of Oxygen Reserve Index in Early Detection of Desaturation in Geriatric Patients Scheduled for Oncological Surgery

NCT07326293 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 44

Last updated 2026-01-08

No results posted yet for this study

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 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%.

The 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.

Conditions

  • Desaturation
  • Apnea, Hypoxia
  • Oxygen Reserve Index

Sponsors & Collaborators

  • Ankara City Hospital Bilkent

    lead OTHER

Eligibility

Min Age
65 Years
Max Age
100 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-12-16
Primary Completion
2026-02-16
Completion
2026-02-16

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07326293 on ClinicalTrials.gov