Inspired Oxygen (FIO2), End-tidal Oxygen (ETO2), End-tidal Carbon Dioxide (ETCO2) and Respiratory Rate (RR) Will be Measured Every 30 SecondsNCT01865851
Comparison of the Classic Face Mask Versus NuMask for Preoxygenation
A study testing Classic Face Mask and NuMask in people with Inspired Oxygen (FIO2), End-tidal Oxygen (ETO2), End-tidal Carbon Dioxide (ETCO2) and Respiratory Rate (RR) Will be Measured Every 30 Seconds, run by Nimmagadda, Usharani, M.D. at 1 site in United States.
Trial summary
Currently used face mask has certain disadvantages; such as, not providing a complete seal in certain patients, causing hand fatigue after holding the mask in place for more than a few minutes, causing claustrophobia in an occasional patient, the need to hold the mask from head of the bed, and possible worsening of… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Inspired Oxygen (FIO2), End-tidal Oxygen (ETO2), End-tidal Carbon Dioxide (ETCO2) and Respiratory Rate (RR) Will be Measured Every 30 Seconds
- What is being tested?
- Classic Face Mask and NuMask
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteUnited States
- Study dates
- May 2013to Jun 2018
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- volunteers
Who cannot join
- under 18
Trial locations and contacts
1 site in 1 country.
United States1 site, 1 recruiting
- Recruiting
Advocate Illinois Masonic Medical Center, Department of Anesthesia
Chicago, Illinois, 60657
Usharani Nimmagadda, MD, 773-296-5403, ushanimm@hotmail.com
Adriana S Vonderhaar, BS, 773-296-5616, adriana.vonderhaar@advocatehealth.com
About this study
Currently used face mask has certain disadvantages; such as, not providing a complete seal in certain patients, causing hand fatigue after holding the mask in place for more than a few minutes, causing claustrophobia in an occasional patient, the need to hold the mask from head of the bed, and possible worsening of the trauma in patients with facial injuries, and the need to use different size masks in different patients. The NuMask overcomes all of these disadvantages and does benefit the patients.
Read the detailed description
The administration of oxygen before anesthetic induction and tracheal intubation (preoxygenation) is a well-recognized technique designed to increase oxygen reserves and thereby delay the onset of arterial oxygen desaturation during apnea. It is particularly important if manual ventilation is not desirable prior to intubation (eg: rapid sequence induction) or if difficulty with ventilation or intubation is anticipated or in patients with oxygen transport limitations. Because the "cannot ventilate/cannot intubate" situation is an unpredictable event, theoretically all patients should be maximally preoxygenated.
Fraction of inspired oxygen (FIO2) is one of the factors in achieving maximal preoxygenation. A common reason for the failure to achieve an FIO2 close to 1.0 is a leak under the face mask. Several factors may contribute to the leak. These are edentulous patients, patients with sunken cheeks, bearded patients, the presence of nasogastric tubes, wrong size face masks, improper use of head straps, and patients with large heads and faces where even the large size mask may not fit properly.
Recently a new intraoral mask "NuMask" has become available for anesthetic induction. It is placed under the lips and outside the gums of the patient mouth (similar to snorkel mouth piece), thus providing a good seal in almost any patient. In addition to providing a good seal, the NuMask has other advantages over the standard face mask. It has very small dead space (18 cc : 110 cc), provides comfortable grip, ventilation can be provided from any position and causes less facial trauma.
The efficacy of preoxygenation using the NuMask will be compared to the classic face mask in approximately 30 healthy and consenting adult volunteers. All of the volunteers will be randomly assigned into one of 2 groups. All volunteers will be tested for three (3) periods of 5 minute intervals. Inspired oxygen (FIO2), end-tidal oxygen (ETO2), end-tidal carbon dioxide (ETCO2) and respiratory rate (RR) will be tested. Analysis of the data may reveal whether the NuMask is equal, superior, or inferior to the classic face mask in achieving maximal preoxygenation.
Although the NuMask has been tested and used in various scenarios of airway management, its efficacy in achieving maximal preoxygenation has not been studied
- Being tested
- Classic Face Mask and NuMask
- Keywords
- Inspired oxygen, end-tidal oxygen, end-tidal carbon dioxide, respiratory rate, preoxygenation, classic face mask, NuMask
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Classic Face Mask and NuMaskDevice
| Study group | Role | What they receive |
|---|---|---|
| Start with Classic Face Mask Group | Active comparator | The volunteers will be asked to breathe normally (Tidal Volume Breathing) through face mask for 5 minutes. After 5 minutes, the volunteers will be asked to breathe room air for 5 minutes and then breathe through a NuMask for 5 minutes. This will be followed by room air breathing for 5 minutes. At the end of the 5 minutes of room air breathing, the same volunteers will be asked to breathe through the face mask for 5 minutes. Receives: Device: Classic Face Mask and NuMask |
| Start with NuMask Group | Active comparator | The volunteers will be asked to breathe through the NuMask for 5 minutes, followed by room air breathing for 5 minutes, then 5 minutes of breathing through the face mask. This will be followed by room air breathing for 5 minutes and then 5 minutes of NuMask breathing. Receives: Device: Classic Face Mask and NuMask |
What is being measured
The primary outcome is the main question the study is designed to answer.
Inspired (FIO2)
Healthy volunteers will be randomly breathing 100% oxygen through either a classic face mask or NuMask for 5 minutes. Measurements will be taken every 30 seconds. The purpose of the study is to evaluate which mask will provide maximal pre-oxygenation (more than 90% end-tidal oxygen).
Measured: 30 minutes
Secondary outcomes (3)
ETCO2
Measured: 30 minutes
ETO2
Measured: 30 minutres
Respiratory Rate
Measured: 30 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 May 2013 (estimated)
- Study startMay 2013
- Primary completionMay 2018 (estimated)
- Study completionJun 2018 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Inspired Oxygen (FIO2), End-tidal Oxygen (ETO2), End-tidal Carbon Dioxide (ETCO2) and Respiratory Rate (RR) Will be Measured Every 30 SecondsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Nimmagadda, Usharani, M.D.
- Responsible party
- Principal investigator, Usharani Nimmagadda, Advocate Illinois Masonic Medical Center
- Investigators
- Nick Knezevic, PhD, MD, Study director, Advocate Illinois Masonic Medical Center, Department of Anesthesiology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01865851
- Sponsor's protocol ID
- IRB5558
- Status last verified
- Sep 2017
- First submitted
- 14 May 2013
- Last updated
- 14 Sep 2017
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Nimmagadda U, Salem MR, Joseph NJ, Miko I. Efficacy of preoxygenation using tidal volume and deep breathing techniques with and without prior maximal exhalation. Can J Anaesth. 2007 Jun;54(6):448-52. doi: 10.1007/BF03022030.
PubMed 17541073Nimmagadda U, Chiravuri SD, Salem MR, Joseph NJ, Wafai Y, Crystal GJ, El-Orbany MI. Preoxygenation with tidal volume and deep breathing techniques: the impact of duration of breathing and fresh gas flow. Anesth Analg. 2001 May;92(5):1337-41. doi: 10.1097/00000539-200105000-00049.
PubMed 11323373Nimmagadda U, Salem MR, Joseph NJ, Lopez G, Megally M, Lang DJ, Wafai Y. Efficacy of preoxygenation with tidal volume breathing. Comparison of breathing systems. Anesthesiology. 2000 Sep;93(3):693-8. doi: 10.1097/00000542-200009000-00018.
PubMed 10969302Ramez Salem M, Joseph NJ, Crystal GJ, Nimmagadda U, Benumof JL, Baraka A. Preoxygenation: comparison of maximal breathing and tidal volume techniques. Anesthesiology. 2000 Jun;92(6):1845-7. No abstract available.
PubMed 10839945
Study at a glance
From the registry record, last updated by the sponsor on 14 Sep 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of the Classic Face Mask Versus NuMask for Preoxygenation
- ClinicalTrials.gov ID
- NCT01865851
- Acronym / sponsor ID
- IRB5558
- Keywords
- Inspired oxygen, end-tidal oxygen, end-tidal carbon dioxide, respiratory rate, preoxygenation, classic face mask, NuMask
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- Nimmagadda, Usharani, M.D.
- Study start
- May 2013
- Primary completion
- May 2018 (estimated)
- Study completion
- Jun 2018 (estimated)
- First posted
- 31 May 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Currently used face mask has certain disadvantages; such as, not providing a complete seal in certain patients, causing hand fatigue after holding the mask in place for more than a few minutes, causing claustrophobia in an occasional patient, the need to hold the mask from head of the bed, and possible worsening of the trauma in patients with facial injuries, and the need to use different size masks in different patients. The NuMask overcomes all of these disadvantages and does benefit the patients.
Detailed description
The administration of oxygen before anesthetic induction and tracheal intubation (preoxygenation) is a well-recognized technique designed to increase oxygen reserves and thereby delay the onset of arterial oxygen desaturation during apnea. It is particularly important if manual ventilation is not desirable prior to intubation (eg: rapid sequence induction) or if difficulty with ventilation or intubation is anticipated or in patients with oxygen transport limitations. Because the "cannot ventilate/cannot intubate" situation is an unpredictable event, theoretically all patients should be maximally preoxygenated.
Fraction of inspired oxygen (FIO2) is one of the factors in achieving maximal preoxygenation. A common reason for the failure to achieve an FIO2 close to 1.0 is a leak under the face mask. Several factors may contribute to the leak. These are edentulous patients, patients with sunken cheeks, bearded patients, the presence of nasogastric tubes, wrong size face masks, improper use of head straps, and patients with large heads and faces where even the large size mask may not fit properly.
Recently a new intraoral mask "NuMask" has become available for anesthetic induction. It is placed under the lips and outside the gums of the patient mouth (similar to snorkel mouth piece), thus providing a good seal in almost any patient. In addition to providing a good seal, the NuMask has other advantages over the standard face mask. It has very small dead space (18 cc : 110 cc), provides comfortable grip, ventilation can be provided from any position and causes less facial trauma.
The efficacy of preoxygenation using the NuMask will be compared to the classic face mask in approximately 30 healthy and consenting adult volunteers. All of the volunteers will be randomly assigned into one of 2 groups. All volunteers will be tested for three (3) periods of 5 minute intervals. Inspired oxygen (FIO2), end-tidal oxygen (ETO2), end-tidal carbon dioxide (ETCO2) and respiratory rate (RR) will be tested. Analysis of the data may reveal whether the NuMask is equal, superior, or inferior to the classic face mask in achieving maximal preoxygenation.
Although the NuMask has been tested and used in various scenarios of airway management, its efficacy in achieving maximal preoxygenation has not been studied
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Start with Classic Face Mask Group | Active comparator | Device: Classic Face Mask and NuMaskThe volunteers will be asked to breathe normally (Tidal Volume Breathing) through face mask for 5 minutes. After 5 minutes, the volunteers will be asked to breathe room air for 5 minutes and then breathe through a NuMask for 5 minutes. This will be followed by room air breathing for 5 minutes. At the end of the 5 minutes of room air breathing, the same volunteers will be asked to breathe through the face mask for 5 minutes. |
| Start with NuMask Group | Active comparator | Device: Classic Face Mask and NuMaskThe volunteers will be asked to breathe through the NuMask for 5 minutes, followed by room air breathing for 5 minutes, then 5 minutes of breathing through the face mask. This will be followed by room air breathing for 5 minutes and then 5 minutes of NuMask breathing. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- volunteers
Key exclusion criteria (1 listed)
- under 18
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Classic Face Mask and NuMask | Device | Start with Classic Face Mask Group, Start with NuMask Group |
Primary outcome
Inspired (FIO2)
Time frame: 30 minutes
Healthy volunteers will be randomly breathing 100% oxygen through either a classic face mask or NuMask for 5 minutes. Measurements will be taken every 30 seconds. The purpose of the study is to evaluate which mask will provide maximal pre-oxygenation (more than 90% end-tidal oxygen).
3 secondary outcomes
ETCO2
Time frame: 30 minutes
ETO2
Time frame: 30 minutres
Respiratory Rate
Time frame: 30 minutes
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Sep 2017.
- Results publication: PubMed 17541073Nimmagadda U, Salem MR, Joseph NJ, Miko I. Efficacy of preoxygenation using tidal volume and deep breathing techniques with and without prior maximal exhalation. Can J Anaesth. 2007 Jun;54(6):448-52. doi: 10.1007/BF03022030.
- Results publication: PubMed 11323373Nimmagadda U, Chiravuri SD, Salem MR, Joseph NJ, Wafai Y, Crystal GJ, El-Orbany MI. Preoxygenation with tidal volume and deep breathing techniques: the impact of duration of breathing and fresh gas flow. Anesth Analg. 2001 May;92(5):1337-41. doi: 10.1097/00000539-200105000-00049.
- Results publication: PubMed 10969302Nimmagadda U, Salem MR, Joseph NJ, Lopez G, Megally M, Lang DJ, Wafai Y. Efficacy of preoxygenation with tidal volume breathing. Comparison of breathing systems. Anesthesiology. 2000 Sep;93(3):693-8. doi: 10.1097/00000542-200009000-00018.
- Results publication: PubMed 10839945Ramez Salem M, Joseph NJ, Crystal GJ, Nimmagadda U, Benumof JL, Baraka A. Preoxygenation: comparison of maximal breathing and tidal volume techniques. Anesthesiology. 2000 Jun;92(6):1845-7. No abstract available.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Nick Knezevic, PhD, MD study director
Advocate Illinois Masonic Medical Center, Department of Anesthesiology
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Classic Face Mask and NuMask in people with Inspired Oxygen (FIO2), End-tidal Oxygen (ETO2), End-tidal Carbon Dioxide (ETCO2) and Respiratory Rate (RR) Will be Measured Every 30 Seconds, run by Nimmagadda, Usharani, M.D. at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 14 Sep 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Usharani Nimmagadda, MD (312-240-1020, ushanimm@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Inspired (FIO2) (time frame: 30 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01865851, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Sep 2017.