Intubation Complication, Intubation; Difficult or Failed
Conditions
Brief summary
In a non-randomized, controlled, cross-over simulation study, the investigators evaluated and compared intubation performance of trained operators, using either a conventional laryngoscope in an ice-pick position or a video laryngoscope in a free-floating classic position, in weightlessness and in normogravity. Data were analyzed with the generalized linear mixed-effects models. Primary endpoint was the success rate of tracheal intubation. Time to intubation and the confidence score into the success of tube placement were also recorded as secondary endpoints.
Interventions
DEVICEVideolaryngoscopy / Direct Laryngoscopy
First pass success analysis
Sponsors
Centre National d'Etudes Spatiales
Groupe Hospitalier de Bretagne Sud
Study design
Allocation
NON_RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE
Intervention model description
A simulation study, in which participants alternatively perform oro-tracheal intubation on a manikin, either using a videolaryngoscope (McGrath model, Medtronic TM) or a direct laryngoscope
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
Healthy volunteers * aged between 18 and 65 years old. * Absence of pregnancy * Belonging to a Health Insurance Coverage by the French Social Security Program or equivalent, proved by a European Health Insurance Card (EHIC). * Medically fit to fly after a JAR FCL3 - Class 2 examination
Exclusion criteria
before the flight * positive pregnancy test on flight day * anxiety * non-participation in flight safety briefing
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| First pass success | 1 day (1 flight) | Bi-pulmonary ventilation success was assessed by the intubating operator performing chest auscultation and by the measurement of a tidal volume on the mannequin's electronic sensors. Selective side intubation was considered as failure |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Time | 1 day (1 flight) | The duration (seconds) of each attempt was recorded and ended with vocal confirmation of tube placement from the intubating operator or at the end of the parabola |
| Confidence Score | 1 day (1 flight) | A subjective score of confidence in the correct tube placement was recorded after each attempt and ranked from minus ten (complete certainty about failure) to plus ten (complete certainty about success). A score of zero was pronounced by the operator when he/she had maximum uncertainty about success or failure. |
Countries
France
Outcome results
None listed