Palpation Versus TACA- Ultrasonography for Identifying the Cricothyroid Membrane in Case of a Laterally Deviated Larynx

Study Overview
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Brief Summary
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test persons, anaesthesiologists will identify the cricothyroid membrane on a silicone model of the neck with either palpation or ultrasonography. The ultrasonographic method to be used is the Thyroid-Airline-Cricoid-Airline (TACA) approach. The larynx-model is deviated to one of the sides to simulate a patient with neck pathology

Detailed Description
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test persons, anaesthesiologists will identify the cricothyroid membrane on a silicone model of the neck with either palpation or ultrasonography. The ultrasonographic method to be used is the Thyroid-Airline-Cricoid-Airline (TACA) approach. The larynx-model is deviated to one of the sides to simulate a patient with neck pathology. The test persons are randomised to use other palpation or ultrasonography. Al attempts are video-taped

Official Title
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Palpation Versus TACA (Thyroid-Airline-Cricoid-Airline) Ultrasonography for Identifying the Cricothyroid Membrane in Case of a Laterally Deviated Larynx

Conditions
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Airway Management

Intervention / Treatment
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* Diagnostic Test: Palpation
* Diagnostic Test: Ultrasonography with TACA approach


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Participants in a course of airway management - Exclusion Criteria: Exclusion Criteria: unwillingness to participate -

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: Diagnostic
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: randomised to either palpation or ultrasonography The participants are thus randomised to use either palpation or to use ultrasonography to DIAGNOSE the position of the cricothyroid membrane
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Palpation<br>digital palpation used to identify the cricothyroid membrane | Diagnostic Test: Palpation<br>* identification of the cricothyroid using PALPATION, a procedure used to prepare for front of neck airway access<br>|
| Experimental: Ultrasonography<br>Ultrasonography (TACA approach) used to identify the cricothyroid membrane | Diagnostic Test: Ultrasonography with TACA approach<br>* identification of the cricothyroid membrane, using ULTRASONOGRAPHY with TACA approach , a procedure used to prepare for front of neck airway access<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Correct identification of the cricothyroid membrane within a minute | The fraction of correct identifications of the location of the cricothyroid membrane | 1 minute | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Correct identification of the sagittal plane within the airway | The fraction of identifications that were within the sagittal boundaries of the trachea | 1 minute | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Airway Management, cricothyrotomy