Feasibility of Obtaining Pulse Oximetry Readings From the Oropharynx

This is a prospective study to evaluate the feasibility of obtaining a pulse oximetry ready from the oropharynx with a standard oximeter probe that has been attached to an oral airway or a tongue blade. The study will compare the values from the peripheral pulse oximeter on a finger, toe, foot or hand with the that from the oropharyngeal oximeter. The study will also compare the saturation from an arterial blood gas (ABG) collected as standard of care with that obtained from the oropharyngeal oximeter.

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Key information

Conditions

Surgery Arterial Catheterization, Peripheral

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Nationwide Children's Hospital

Columbus, Ohio, 43205, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients undergoing a surgical procedure with general anesthesia and requiring an invasive arterial cannula

Exclusion criteria

Patients in whom an arterial cannula is not indicated for the surgical procedure
Patients in whom a peripheral pulse oximeter value cannot be obtained
Patients in whom an invasive arterial cannula cannot be placed
Patients with any type of intra-oral pathology or injury
Patients in whom access to the oropharynx is restricted or not feasible for any clinical reason

Treatment and study plan

Pulse oximetry

Device

Noninvasive method of measuring the saturation of oxygen in the blood.

Primary outcomes

Oropharyngeal vs Extremity Saturation

Time frame: Baseline

Difference between the average oropharyngeal oxygen saturation and the average extremity oxygen saturation which were recorded every 2 minutes for a total of 30 minutes.
ABG PaO2

Time frame: Baseline

The arterial blood gas (ABG) partial pressure of oxygen (PaO2) collected at the same time as the oropharyngeal oxygen saturation (SpO2) recording.
Oropharyngeal SpO2

Time frame: Baseline

The oropharyngeal oxygen saturation (SpO2) recorded at the same time as the arterial blood gas (ABG) partial pressure of oxygen (PaO2) collection.

Sponsors and collaborators

Lead sponsor

Joseph D. Tobias

Other

Registry information

Important dates

Study start: 2024
Primary completion: 2025
Study completion: 2025
First posted: Jan 19, 2023
Registry last updated: May 13, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed