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OpenTrials
Completed

NCT Number: NCT04065412

Modified Laryngeal Handshake Technique

In this study, we compare the conventional laryngeal handshake technique and modified laryngeal handshake technique for locating the cricothyroid membrane in terms of accuracy and speed. The conventional laryngeal handshake technique is performed with the non-dominant hand, identifying the hyoid bone and thyroid laminae, stabilizing the larynx between thumb and middle finger, and moving down the neck to palpate the cricothyroid membrane with the index finger.

The modified laryngeal handshake is performed with the non-dominant hand, stabilizing the trachea between thumb and middle finger from the suprasternal notch and moving up the neck to palate the cricoid cartilage and cricothyroid membrane with the index finger.

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Key information

Conditions

Airway Complication of Anesthesia

Age range

20 year and older

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

SMG-SNU Boramae Medical Center

Seoul, South Korea

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients who would be scheduled elective surgery under general anesthesia

Exclusion criteria

  • Diseases or anatomical abnormalities in the neck or larynx
  • History of neck surgery

Treatment and study plan

Conventional laryngeal handshake technique

Procedure

The conventional laryngeal handshake technique is performed with the non-dominant hand, identifying the hyoid bone and thyroid laminae, stabilizing the larynx between thumb and middle finger, and moving down the neck to palpate the cricothyroid membrane with the index finger.

Modified laryngeal handshake technique

Procedure

The modified laryngeal handshake is performed with the non-dominant hand, stabilizing the trachea between thumb and middle finger from the suprasternal notch and moving up the neck to palate the cricoid cartilage and cricothyroid membrane with the index finger.

Primary outcomes

  1. The accuracy to localize the cricothyoid membrane

    Time frame: 1 minute after identifying the cricothyroid membrane using the conventional or modified laryngeal handshake technique

    The accuracy of the cricothyroid membrane identified by the conventional and modified handshake techniques are evaluated.

Secondary outcomes

  1. The accuracy to localize the midline of the neck

    Time frame: through the identification of cricothyroid membrane, an average of 5 minutes

    The accuracy of the midline of the neck identified by the conventional and modified handshake techniques are evaluated.

  2. The vertical and horizontal distances between the actual and perceived cricothyroid membrane

    Time frame: through the identification of cricothyroid membrane, an average of 5 minutes

    The vertical and horizontal distances between the actual and perceived cricothyroid membrane using the conventional and modified handshake techniques are evaluated.

  3. Time to localize the cricothyroid membrane

    Time frame: through the identification of cricothyroid membrane, an average of 5 minutes

    The time taken to identify the cricothyroid membrane is recorded.

Sponsors and collaborators

Lead sponsor

SMG-SNU Boramae Medical Center

Other

Registry information

Official study title

Modified Laryngeal Handshake Technique for Locating the Cricothyroid Membrane

Important dates

Study start
2020
Primary completion
2020
Study completion
2020
First posted
Aug 22, 2019
Registry last updated
Jan 28, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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