Modified Laryngeal Handshake Technique

Airway Complication of Anesthesia Clinical Trial

Official title:

Modified Laryngeal Handshake Technique for Locating the Cricothyroid Membrane

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04065412
• Other study ID #: 2019208
• Status: Completed
• Phase: N/A
• Start date: March 5, 2020
• Est. completion date: November 30, 2020

Study information

• Verified date: January 2021
• Source: SMG-SNU Boramae Medical Center
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 200
• Est. completion date: November 30, 2020
• Est. primary completion date: November 30, 2020
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 20 Years and older

Eligibility

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

Related Conditions & MeSH terms

• Airway Complication of Anesthesia

Intervention

Procedure:
• Conventional laryngeal handshake technique
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
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.

Locations

Country	Name	City	State
Korea, Republic of	SMG-SNU Boramae Medical Center	Seoul

Sponsors (1)

Lead Sponsor	Collaborator
SMG-SNU Boramae Medical Center

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The accuracy to localize the cricothyoid membrane	The accuracy of the cricothyroid membrane identified by the conventional and modified handshake techniques are evaluated.	1 minute after identifying the cricothyroid membrane using the conventional or modified laryngeal handshake technique
Secondary	The accuracy to localize the midline of the neck	The accuracy of the midline of the neck identified by the conventional and modified handshake techniques are evaluated.	through the identification of cricothyroid membrane, an average of 5 minutes
Secondary	The vertical and horizontal distances between the actual and perceived cricothyroid membrane	The vertical and horizontal distances between the actual and perceived cricothyroid membrane using the conventional and modified handshake techniques are evaluated.	through the identification of cricothyroid membrane, an average of 5 minutes
Secondary	Time to localize the cricothyroid membrane	The time taken to identify the cricothyroid membrane is recorded.	through the identification of cricothyroid membrane, an average of 5 minutes