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A randomised controlled trial in cadavers investigating methods for intubation via a supraglottic airway device: comparison of fibre-optic-guided versus a modified retrograde technique performed by emergency physicians

A randomised controlled trial in cadavers investigating methods for intubation via a supraglottic airway device: comparison of fibre-optic-guided versus a modified retrograde technique performed by emergency physicians

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12621000995875
Enrollment
4
Registered
2021-07-28
Start date
2021-09-22
Completion date
2021-09-22
Last updated
2022-08-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

In this study we have chosen to compare two options for intubation via a supraglottic airway device (SGA). We feel this is a scenario likely to be encountered by emergency physicians as these devices are commonly used in this setting as a ‘rescue device’, which can temporarily allow ventilation when traditional laryngoscopy has failed to secure a definitive airway. The first method is a novel retrograde technique where the guidewire is passed via the SGA; this second method is a fibre-optic guided approach, also via the SGA. Our theory is that intubation via an SGA will allow an emergency physician to reliably achieve a secure airway as these devices are designed to open directly at the laryngeal inlet and so may be an ideal conduit for either retrograde or fibre-optic intubation of the trachea. The null hypothesis is that there is no difference in the time taken to secure an endotracheal tube by these two methods.

Interventions

Retrograde wire guided intubation technique via an i-gel supraglottic airway device (SGA), placed orally, by an emergency physician (EP) with preliminary training consisting of a 60 minute training session on kit familiarisation, practice on an airway mannequin, and then on a cadaver. It is anticipated that the intubation technique will be completed within 3 minutes. During the procedure the process will be supervised by an experienced emergency physician, familiar with the technique, who is ab

Retrograde wire guided intubation technique via an i-gel supraglottic airway device (SGA), placed orally, by an emergency physician (EP) with preliminary training consisting of a 60 minute training session on kit familiarisation, practice on an airway mannequin, and then on a cadaver. It is anticipated that the intubation technique will be completed within 3 minutes. During the procedure the process will be supervised by an experienced emergency physician, familiar with the technique, who is able to offer advice on the procedure. Regarding the 'wash out' period: The physician will undertake both the intervention and comparator techniques on the cadavers as part of a randomised sequence of experiments. As such there will be no 'wash out'.

Sponsors

Emergency & Trauma Centre, The Alfred Hospital
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

Emergency Physician with preliminary training on use of the retrograde intubation kits.

Exclusion criteria

None

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 14, 2026