ORI (Oxygen Reserve Index): Early Warning for Desaturation in Morbidly Obese Patients

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"Study to evaluate the Oxygen Reserve Index (ORI) as an early warning for oxygen desaturation of patients during surgery with intubation"
18 to 100 years old
Healthy Volunteers:
surgery, intubation, obesity
Device study
This is a study designed to evaluate the clinical usefulness of the Oxygen Reserve Index (ORI) as an early warning for oxygen desaturation during the induction of general anesthesia and tracheal intubation in obese patients undergoing elective surgical procedures.
This study requires

Placement of an additional non-invasive monitor on your fingers to measure the amount of oxygen in your blood and record these measurements on a computer

Who can participate

Inclusion Criteria:

  • Patients scheduled for elective surgery requiring general anesthesia and endotracheal intubation

  • BMI greater than 30 m/kg2

  • BMI less than 40 m/kg2

Exclusion Criteria:

  • Age less than 18 years

  • Adults unable to give primary consent

  • Pregnancy

  • Prisoners

Study duration and period
10 minutes at the beginning of surgery
Recruitment period
From June 27, 2016
UC Davis Dept. Anesthesiology and Pain Medicine
4150 V Street
Sacramento, CA 95817
Research Topic
  • Morbid Obesity
  • Surgery

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