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| Name | Class |
|---|---|
| National Aeronautics and Space Administration (NASA) | FED |
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The purpose of this study is to determine whether an experienced anesthesia provider can adequately and/or easily mask ventilate an anesthetized patient with a commercial non-invasive ventilator device.
The purpose of this study is to determine whether an experienced anesthesia provider can adequately and/or easily mask ventilate an anesthetized patient with a commercial non-invasive ventilator device. The ventilator subject of this study is commonly used in the ICU and investigators aim to evaluate its usefulness in the OR. Investigators believe that the ventilator will ventilate with consistent breath rates, adequate tidal volumes and minimal airway pressures. The providers subjective scoring of ease or difficulty of ventilation with each device will also be recorded.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Noninvasive Ventilation | Experimental | After induction of anesthesia, checking of ability to bag mask ventilating the patient, the manual bag ventilation will be replaced by a Noninvasive Ventilator, V60 (Philips) |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Noninvasive Ventilator, V60 (Philips) | Device | The noninvasive ventilator will be set to deliver 10 breaths per minute with a pressure setting of 8 cm H2O during exhalation and 20 cm H2O during inspiration. The inspired oxygen fraction given by the ventilator will be set at the maximum level (100% oxygen). |
| Measure | Description | Time Frame |
|---|---|---|
| Average of the difference in Respiratory Rate between Manual and Mechanical Ventilation (1/min) | Difference in average respiratory rate between manual ventilation and mechanical noninvasive ventilation averaged per patient, then averaged across all studied patients. Unit: 1/min. | Assessment will be made during the procedure during 10 consecutive breaths (depending on the breath rate, for approximately 1 minute) after induction but before intubation. |
| Average of the difference in ideal body weight indexed tidal volume between Manual and Mechanical Ventilation (mL/kg) | Difference in average tidal volume per ideal body weight between manual ventilation and mechanical noninvasive ventilation, averaged per patient, then averaged across all studied patients. Unit: mL/kg | Assessment will be made during the procedure during 10 consecutive breaths (depending on the breath rate, for approximately 1 minute) after induction but before intubation |
| In-Patient Average Difference of Standard Deviation in Respiratory Rate between Manual and Mechanical Ventilation (1/min) | Difference in standard deviation of respiratory rate between manual ventilation and mechanical noninvasive ventilation averaged per patient, then averaged across all studied patients. Unit: 1/min. | Assessment will be made during the procedure during 10 consecutive breaths (depending on the breath rate, for approximately 1 minute) after induction but before intubation |
| In-Patient Average Difference of Standard Deviation in ideal body weight indexed tidal volume between Manual and Mechanical Ventilation (mL/kg) | Difference in standard deviation of tidal volume per ideal body weight between manual ventilation and mechanical noninvasive ventilation, averaged per patient, then averaged across all studied patients. Unit: mL/kg | Assessment will be made during the procedure during 10 consecutive breaths (depending on the breath rate, for approximately 1 minute) after induction but before intubation |
| Measure | Description | Time Frame |
|---|---|---|
| Difficulty or ease of ventilation as perceived by anesthesia provider | NASA TLX Score after each patient | Assessment will be made within one hour after the surgery has been completed. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Kai Kuck, Ph.D. | University of Utah | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 31760586 | Derived | Fogarty M, Orr JA, Sakata D, Brewer L, Johnson K, Fang JC, Kuck K. A comparison of ventilation with a non-invasive ventilator versus standard O2 with a nasal cannula for colonoscopy with moderate sedation using propofol. J Clin Monit Comput. 2020 Dec;34(6):1215-1221. doi: 10.1007/s10877-019-00426-5. Epub 2019 Nov 23. |
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We do not plan to share individual participant data.
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| Manual Bag | Device | Oxygen will flow through the standard breathing circuit with the fresh gas flow rate set at 10 L/min and the patient will be ventilated. The anesthesia provider will manually bag mask ventilate the patient until the anesthesiologist feels comfortable that the patient can be ventilated appropriately. |
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