NCT07097662Completed
Evaluation of the Effectiveness of Oxygen Reserve Index Monitoring During Pre-oxygenation in Obese Patients
Source: ClinicalTrials.gov · Last updated 31 Jul 2025
Brief summary (registry, in English)
In obese patients, the risk of perioperative complications such as rapid desaturation, atelectasis, difficult mask ventilation, difficult intubation, and hypoxia is higher compared to the normal population. Therefore, preoxygenation is even more critical in the obese patient group. In clinical practice, ETO2 is used as a practical indicator to evaluate sufficient oxygenation during preoxygenation. The Oxygen Reserve Index (ORiⓇ) is a new oxygenation monitoring parameter that is continuously and non-invasively measured by a specialized pulse oximetry device (Masimo, Irvine, CA).The primary objective of the investigators was to observe the correlation between ORIⓇ monitoring and ETO₂ during preoxygenation in obese patients.The secondary objective of the investigators was to evaluate the correlation of ORIⓇ with SpO₂ and PaO₂ in this patient population.
- Status (registry)
- Completed
- Study type
- Observational
- Enrollment
- 60 (actual)
- First submitted
- 17 Jul 2025
- Start date
- Feb 2024
- Primary completion date
- Jul 2024
- Lead sponsor
- Irem Caner
- Diseases
- Obesity
- NCT number
- NCT07097662
What you commit to
- Study type: Observational
- Participants enrolled: 60
- From Feb 2024 to the primary completion date, Jul 2024
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Those receiving home oxygen therapy
Other illness
- Psychiatric disorders
- Severe cardiac arrhythmias
- Chronic obstructive pulmonary disease (COPD)
Lab values
- Patients with an ejection fraction below 30%
Other
- Patients with ASA physical status classification IV-V,
- Patients requiring supraglottic airway devices, and emergency cases
Who the study is looking for
- Patients with a body mass index (BMI) \>35 kg/m² scheduled for elective surgery
- ASA (American Society of Anesthesiologists) physical status classification I-III
- Patients aged 18 years and older
Age in the registry: 18 years to 75 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Kocaeli University Coordinator of this site? Confirm its status | Kocaeli | Turkey (Türkiye) | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.