Airway Complication of Anesthesia
Conditions
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.
Interventions
PROCEDUREConventional 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.
PROCEDUREModified 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.
Sponsors
SMG-SNU Boramae Medical Center
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
DOUBLE (Subject, Caregiver)
Eligibility
Sex/Gender
FEMALE
Age
20 Years to No maximum
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| 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. |
| 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. |
Countries
South Korea
Outcome results
None listed