Endotracheal Intubation Devices

Study Overview
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Brief Summary
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The purpose of this study was to compare the four different intubation devices in 6 different scenarios.

Official Title
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Comparison of Four Different Endotracheal Intubation Devices Performed by Emergency Medical Professionals: a Manikin Study With 6 Airway Scenarios

Conditions
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Intubation

Intervention / Treatment
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* Device: The Miller Laryngoscope
* Device: The Bonfils intubation fibrescope
* Device: The GlideScope Ranger
* Device: The Supraglottic Airway Laryngopharyngeal Tube (SALT)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: give voluntary consent to participate in the study minimum 1 year of work experience in emergency medicine experienced emergency medical personnel (paramedics, nurses, physicians) Exclusion Criteria: not meet the above criteria wrist or low back diseases

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Scenario 1: Uninterrupted chest compressions<br>Endotracheal intubation (ETI) during pediatric manikin with uninterrupted chest compressions. Chest compression was performed using LUCAS-2 (Physio-Control, USA). | Device: The Miller Laryngoscope<br>* Direct laryngoscopy<br>Device: The Bonfils intubation fibrescope<br>* Optical laryngoscopy<br>Device: The GlideScope Ranger<br>* Videolaryngoscopy<br>Device: The Supraglottic Airway Laryngopharyngeal Tube (SALT)<br>* Blind intubation<br>|
| Experimental: Scenario 2: Neutral position<br>ETI performed in neutral mannikin head position | Device: The Miller Laryngoscope<br>* Direct laryngoscopy<br>Device: The Bonfils intubation fibrescope<br>* Optical laryngoscopy<br>Device: The GlideScope Ranger<br>* Videolaryngoscopy<br>Device: The Supraglottic Airway Laryngopharyngeal Tube (SALT)<br>* Blind intubation<br>|
| Experimental: Scenario 3: Sniffing position<br>ETI performed in sniffing mannikin head position | Device: The Miller Laryngoscope<br>* Direct laryngoscopy<br>Device: The Bonfils intubation fibrescope<br>* Optical laryngoscopy<br>Device: The GlideScope Ranger<br>* Videolaryngoscopy<br>Device: The Supraglottic Airway Laryngopharyngeal Tube (SALT)<br>* Blind intubation<br>|
| Experimental: Scenario 4: Pharyngeal swelling<br>ETI performed during mannikin pharyngeal swelling scenario | Device: The Miller Laryngoscope<br>* Direct laryngoscopy<br>Device: The Bonfils intubation fibrescope<br>* Optical laryngoscopy<br>Device: The GlideScope Ranger<br>* Videolaryngoscopy<br>Device: The Supraglottic Airway Laryngopharyngeal Tube (SALT)<br>* Blind intubation<br>|
| Experimental: Scenario 5: Swollen tongue<br>ETI performed during mannikin swollen tongue scenario | Device: The Miller Laryngoscope<br>* Direct laryngoscopy<br>Device: The Bonfils intubation fibrescope<br>* Optical laryngoscopy<br>Device: The GlideScope Ranger<br>* Videolaryngoscopy<br>Device: The Supraglottic Airway Laryngopharyngeal Tube (SALT)<br>* Blind intubation<br>|
| Experimental: Scenario 6: Immobilized cervical spine<br>ETI performed during mannikin immobilized cervical spine scenario | Device: The Miller Laryngoscope<br>* Direct laryngoscopy<br>Device: The Bonfils intubation fibrescope<br>* Optical laryngoscopy<br>Device: The GlideScope Ranger<br>* Videolaryngoscopy<br>Device: The Supraglottic Airway Laryngopharyngeal Tube (SALT)<br>* Blind intubation<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time to intubation | time from insertion of the blade to the first manual ventilation of the manikin´s lungs. If time of intubation is over than 60 seconds, attempt was recognized as failure. | 1 month | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Success of intubation | effectiveness of the first, second and third intubation attempts and overall effectiveness of intubation by participants using four intubation devices. If the examinee failed at all attempts, the case was excluded from the time calculations. | 1 month | 
| POGO score | self-reported percentage of glottis opening (POGO) score | 1 month | 
| VAS score | participants were asked which method they would prefer in a real-life resuscitation. | 1 month | 
| Cormack-Lehane grading | self-reported percentage the vocal cord visualization using the Cormack-Lehane grading (grade 1-4) | 1 month |