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

Recruitingn/aAges 65 Years - 100 YearsAllAnkara City Hospital Bilkent
NCT07326293 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

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.

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📋 Eligibility rules (as published)
Inclusion criteria for the files/records/materials to be included in the study: Records of patients aged 65 years and older, classified as ASA physical status I-III, who are scheduled for elective oncologic surgery. Exclusion criteria for the files/records/materials to be included in the study: 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.
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What it tests

  • Not listed
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Where

1 site
Ankara Bilkent City Hospital
Ankara, Turkey (Türkiye)
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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