Pulse Oximetry Accuracy During Surgery
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial explores a new method to measure blood oxygen levels during surgery using a device placed in the mouth. It compares this method to the standard finger or toe sensor and evaluates how both align with a blood test. The goal is to determine if the mouth method is as accurate and reliable as traditional pulse oximetry methods, which non-invasively monitor a patient's blood oxygen saturation. The trial seeks participants undergoing surgery with general anesthesia who require an arterial cannula for blood pressure monitoring.
As an unphased trial, this study allows participants to contribute to innovative research that could enhance surgical monitoring techniques.
Do I need to stop my current medications for this trial?
The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the trial coordinators or your doctor.
What prior data suggests that this method is safe for measuring pulse oximetry during surgery?
Research has shown that using a pulse oximeter in the throat area is generally well-tolerated. One study found that the accuracy of readings from the throat was similar to those taken from the fingers or toes, with a difference of about 2-4%, which is considered acceptable.
However, like all pulse oximeters, there is a small risk of burns, especially in infants or people with poor blood flow. This risk is rare and manageable. Overall, studies suggest that using a pulse oximeter in the throat is safe during surgery.12345Why are researchers excited about this trial?
Researchers are excited about the use of oropharyngeal pulse oximetry during surgery because it offers a unique way to monitor oxygen levels. Unlike the traditional method of attaching a pulse oximeter to a finger or earlobe, this technique places the device in the oropharynx, which could potentially provide more accurate readings during surgery when blood flow to the extremities might be compromised. This could lead to better patient outcomes by ensuring more reliable monitoring of oxygen levels in real-time.
What evidence suggests that oropharyngeal oximetry is effective for measuring pulse oximetry during surgery?
Research has shown that an oropharyngeal pulse oximeter, which participants in this trial will use, provides reliable oxygen level readings. Studies have found that this type of oximeter shows a small difference of about 4.2 ± 3.4 compared to readings from a finger or toe. One study found it to be very accurate, with a bias of less than 0.5%. Oropharyngeal oximetry also proves more accurate than finger oximetry, especially when blood flow is low. This suggests that the oropharyngeal oximeter is a promising tool for monitoring oxygen levels during surgery.26789
Are You a Good Fit for This Trial?
This trial is for patients who are undergoing surgery with general anesthesia and need an arterial cannula, a small tube inserted into an artery. It's not for those with mouth injuries or diseases, if they can't use a standard finger pulse oximeter, have restricted access to their throat, or don't need the arterial tube for their surgery.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Baseline Measurement
Baseline measurements of pulse oximetry readings from peripheral and oropharyngeal sites
Comparison and Analysis
Comparison of pulse oximetry readings from different sites and analysis against arterial blood gas measurements
Follow-up
Participants are monitored for any immediate post-measurement effects
What Are the Treatments Tested in This Trial?
Interventions
- Pulse Oximetry
Find a Clinic Near You
Who Is Running the Clinical Trial?
Joseph D. Tobias
Lead Sponsor