Modified Laryngeal Handshake Technique

Not Applicable

Completed

• Conditions: Airway Complication of Anesthesia

• Registration Number: NCT04065412
• Lead Sponsor: SMG-SNU Boramae Medical Center

Brief 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.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2019-08-21
• Study First Submitted QC: 2019-08-21
• Study First Posted: 2019-08-22
• Study Start: 2020-03-05
• Primary Completion: 2020-11-30
• Study Completion: 2020-11-30
• Status Verified: 2021-01
• Last Update Submitted: 2021-01-25
• Last Update Posted: 2021-01-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Female
• Target Recruitment: 200

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
The accuracy to localize the cricothyoid membrane	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 Outcome Measures

Name	Time	Method
Time to localize the cricothyroid membrane	through the identification of cricothyroid membrane, an average of 5 minutes	The time taken to identify the cricothyroid membrane is recorded.
The accuracy to localize the midline of the neck	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.
The vertical and horizontal distances between the actual and perceived cricothyroid membrane	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.

Trial Locations

Locations (1)

SMG-SNU Boramae Medical Center; 🇰🇷 Seoul, Korea, Republic of