Comparison of the Classic Face Mask Versus NuMask for Preoxygenation
NCT ID: NCT01865851
Last Updated: 2017-09-14
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
30 participants
INTERVENTIONAL
2013-05-31
2018-06-30
Brief Summary
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Detailed Description
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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
Conditions
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Study Design
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RANDOMIZED
CROSSOVER
OTHER
NONE
Study Groups
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Start with Classic Face Mask Group
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.
Classic Face Mask and NuMask
Start with NuMask Group
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.
Classic Face Mask and NuMask
Interventions
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Classic Face Mask and NuMask
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
ALL
Yes
Sponsors
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Nimmagadda, Usharani, M.D.
INDIV
Responsible Party
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Usharani Nimmagadda
Anesthesiologist
Principal Investigators
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Nick Knezevic, PhD, MD
Role: STUDY_DIRECTOR
Advocate Illinois Masonic Medical Center, Department of Anesthesiology
Locations
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Advocate Illinois Masonic Medical Center, Department of Anesthesia
Chicago, Illinois, United States
Countries
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Central Contacts
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Facility Contacts
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References
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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.
Nimmagadda 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.
Nimmagadda 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.
Ramez 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.
Other Identifiers
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IRB5558
Identifier Type: -
Identifier Source: org_study_id
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