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Feasibility of Obtaining Pulse Oximetry Readings From the Oropharynx

Feasibility of Obtaining Pulse Oximetry Readings From the Oropharynx

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05690633
Enrollment
100
Registered
2023-01-19
Start date
2024-01-09
Completion date
2025-01-27
Last updated
2026-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arterial Catheterization, Peripheral, Surgery

Brief summary

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.

Interventions

DEVICEPulse oximetry

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

Sponsors

Joseph D. Tobias
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Oropharyngeal vs Extremity SaturationBaselineDifference 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 PaO2BaselineThe arterial blood gas (ABG) partial pressure of oxygen (PaO2) collected at the same time as the oropharyngeal oxygen saturation (SpO2) recording.
Oropharyngeal SpO2BaselineThe oropharyngeal oxygen saturation (SpO2) recorded at the same time as the arterial blood gas (ABG) partial pressure of oxygen (PaO2) collection.

Countries

United States

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
100 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Age, Continuous12 years
ASA physical status
I
5 Participants
ASA physical status
II
27 Participants
ASA physical status
III
37 Participants
ASA physical status
IV
6 Participants
BMI21 kg/m2
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
50 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Height150 centimeters
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
9 Participants
Race (NIH/OMB)
More than one race
5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
81 Participants
Region of Enrollment
United States
50 participants
Sex: Female, Male
Female
30 Participants
Sex: Female, Male
Male
43 Participants
Surgery type
Cardiac surgery
7 Participants
Surgery type
GI surgery
5 Participants
Surgery type
Neurosurgery
0 Participants
Surgery type
Orthopedic surgery
66 Participants
Weight41 kilograms

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 500 / 50
other
Total, other adverse events
0 / 500 / 50
serious
Total, serious adverse events
0 / 500 / 50

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 14, 2026