Failed or Difficult Intubation
Conditions
Brief summary
We will conduct this study to show that it is possible to deliver air through a Frova bougie and an Ambu® bag.
Detailed description
Participants will be invited to squeeze an Ambu® bag connected to a Frova bougie, and we will measure the volume of air delivered and peak pressure generated.
Interventions
OTHERFrova bougie
Squeezing an Ambu bag and delivering air through a Frova bougie. Measuring mean volumes of air delivered and peak pressures generated.
Sponsors
University of British Columbia
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Healthy volunteers
Yes
Inclusion criteria
* staff, fellows and resident anesthesiologists
Exclusion criteria
* injury to hand
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Tidal Volume (ml) | 15 minutes | volume of air delivered via Frova bougie (milliliters) |
Countries
Canada
Participant flow
Pre-assignment details
This study design involves a cross-over of participants (i.e., participants are randomly assigned to one of the four groups after which they crossover to the other 3).
Participants by arm
| Arm | Count |
|---|---|
| Maximum and Normal Effort Using Long and Short Frova Bougies In a random order, participants would squeeze an Ambu bag attached to a long or short Frova bougie using both maximum and normal effort. As such, participants performed a total of 4 sets of squeezes (maximum effort: long, normal effort: long, maximum effort: short, and normal effort: short) in a random order.
Frova bougie: Squeezing an Ambu bag attached to a Frova bougie and measuring mean volumes of air delivered. | 35 |
| Total | 35 |
Baseline characteristics
| Characteristic | Maximum and Normal Effort Using Long and Short Frova Bougies |
|---|---|
| Age, Categorical <=18 years | 0 Participants |
| Age, Categorical >=65 years | 0 Participants |
| Age, Categorical Between 18 and 65 years | 35 Participants |
| Region of Enrollment Canada | 35 Participants |
| Sex: Female, Male Female | 18 Participants |
| Sex: Female, Male Male | 17 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 0 / 35 |
| serious Total, serious adverse events | 0 / 35 |
Outcome results
Primary
Tidal Volume (ml)
volume of air delivered via Frova bougie (milliliters)
Time frame: 15 minutes
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Maximum Effort: Long | Tidal Volume (ml) | 954.8 tidal volume (ml) | Standard Deviation 120.7 |
| Normal Effort: Long | Tidal Volume (ml) | 554.4 tidal volume (ml) | Standard Deviation 131.3 |
| Maximum Effort: Short | Tidal Volume (ml) | 893.5 tidal volume (ml) | Standard Deviation 171.6 |
| Normal Effort: Short | Tidal Volume (ml) | 542.9 tidal volume (ml) | Standard Deviation 132.9 |