Actively Recruiting
The Effectiveness of Oxygen Reserve Index in Early Detection of Desaturation in Geriatric Patients Scheduled for Oncological Surgery
Led by Ankara City Hospital Bilkent · Updated on 2026-01-08
44
Participants Needed
1
Research Sites
8 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
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
Official Title
The Effectiveness of Oxygen Reserve Index in Early Detection of Desaturation in Geriatric Patients Scheduled for Oncological Surgery
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Patients aged 65 years and older
- Classified as ASA physical status I-III
- Scheduled for elective oncologic surgery
You will not qualify if you...
- 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
- Dementia
AI-Screening
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Trial Site Locations
Total: 1 location
1
Ankara Bilkent City Hospital
Ankara, Çankaya, Turkey (Türkiye)
Actively Recruiting
Research Team
M
Muhlis Kuru
CONTACT
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
0
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