Palpation Versus Ultrasonography for Identifying the Cricothyroid Membrane of Distorted Neck-anatomy (DEVITRACH3)

December 5, 2025 updated by: Robin Lohse, Rigshospitalet, Denmark

Participants will be anesthesiologists, who will identify the cricothyroid membrane on a silicone model of the neck with either palpation or ultrasonography.

The participants can choose either the "String of pearls" or Thyroid-Airline-Cricoid-Airline (TACA) for the ultrasonographic method to be used .

The silicone model of the neck is distorted with with the larynx deviated to one of the sides to simulate a patient with neck pathology.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Participants will be anesthesiologists, who will identify the cricothyroid membrane on a silicone model of the neck with either palpation or ultrasonography.

The participants can choose either the "String of pearls" or Thyroid-Airline-Cricoid-Airline (TACA) for the ultrasonographic method to be used .

The silicone model of the neck is distorted with with the larynx deviated to one of the sides to simulate a patient with neck pathology.

The test persons are randomized to use other palpation or ultrasonography. All attempts are video-taped.

Study Type

Interventional

Enrollment (Actual)

61

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Denmark
      • Copenhagen, Denmark
        • Rigshospitalet

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Participants in a airway management course

Exclusion Criteria:

  • Unwillingness to participate

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Palpation
digital palpation used to identify the cricothyroid membrane
Diagnostic test: Palpation
Identification of the cricothyroid membrane using PALPATION, a procedure used to prepare for front of neck airway access
Experimental: Ultrasound
Ultrasonography (either "String of pearls" or TACA approach) used to identify the cricothyroid membrane
Diagnostic test: Ultrasound
Identification of the cricothyroid membrane, using ULTRASONOGRAPHY with either the "String of pearls" or TACA aproach as chosen by the participant , a procedure used to prepare for front of neck airway access

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Correct identification of the cricothyroid membrane within a minute
Time Frame: Within 1 minute during procedure
The fraction of correct identifications of the location of the cricothyroid membrane
Within 1 minute during procedure

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Correct identification of the sagittal plane within the airway
Time Frame: Within 1 minute during procedure
The fraction of identifications that were within the sagittal boundaries of the trachea
Within 1 minute during procedure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Rigshospitalet, Denmark

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 21, 2024

Primary Completion (Actual)

November 22, 2024

Study Completion (Actual)

November 22, 2024

Study Registration Dates

First Submitted

November 20, 2024

First Submitted That Met QC Criteria

November 20, 2024

First Posted (Actual)

November 22, 2024

Study Record Updates

Last Update Posted (Estimated)

December 9, 2025

Last Update Submitted That Met QC Criteria

December 5, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • F-22064259-3

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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