Oxygen Reserve Index: Utility as Early Warning for Desaturation in Morbidly Obese Patients



Status:Completed
Conditions:Obesity Weight Loss
Therapuetic Areas:Endocrinology
Healthy:No
Age Range:18 - Any
Updated:10/5/2018
Start Date:September 15, 2016
End Date:July 20, 2018

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Trial Summary
Trial Overview
Inclusion Criteria
The Oxygen Reserve Index (ORi) is a reference that could help clinicians with their
assessments of normoxic and hyperoxic states by scaling the measured absorption information
between 0.00 and 1.00. An ORi of 0.00 corresponds to PaO2 values of 100mmHg and below and an
ORi of 1.00 corresponds to PaO2 values of 200mmHg and above. This is a prospective,
observational, clinical study designed to evaluate the clinical utility of the Oxygen Reserve
Index (ORI) as an early warning for arterial hemoglobin desaturation during the induction of
general anesthesia and tracheal intubation in obese patients undergoing elective surgical
procedures.


Inclusion Criteria:

- Age greater than 18 years

- BMI>30, <40 m/kg2

- Control group only: BMI >18.5 m/kg2, <25 m/kg2

- Scheduled for an elective surgical procedure requiring general anesthesia and
endotracheal intubation

Exclusion Criteria

- Age less than 18 years

- Adults unable to give primary consent

- Pregnancy

- Prisoners
We found this trial at
1
site
UC Davis Health
2315 Stockton Blvd
Sacramento, California 95817
Principal Investigator: Neal W Fleming, M.D., Ph.D.
Phone: 916-734-5048
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mi
from
Sacramento, CA
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