Cricothyroid Membrane
Conditions
Brief summary
Cricothyroidotomy is an emergency rescue technique to secure the airway in a 'Can't intubate, Can't Oxygenate' (CICO) situation. The cricothyroid membrane (CTM) is the target site of cricothyroidotomy, and accurate identification of the CTM is essential for successful cricothyroidotomy. In this study, the investigators compare patient positions (neck extension vs. modified ramped position) in terms of the success rate for identifying the CTM in obese patients.
Interventions
OTHERIdentification of the cricothyroid membrane
The cricothyroid membrane is identified using a laryngeal handshake technique in different patient positions.
Sponsors
SMG-SNU Boramae Medical Center
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
FEMALE
Age
19 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* body mass index \>30 kg/m2
Exclusion criteria
* anatomical abnormalities or pathologies of the neck * a history of neck surgery * cervical spine disorders * skin lesions on the neck
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Success rate for the correct identification of the cricothyroid membrane | Immediately after identifying the cricothyroid membrane using a laryngeal handshake technique | After identifying the cricothyroid membrane using a laryngeal handshake technique in different head positions, an assessor evaluates the correctness of its localization using ultrasound. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Duration for identifying the cricothyroid membrane | At 90 seconds after administering neuromuscular blockade | Time taken to locate the cricothyroid membrane is checked. |
| Distances between the center of the actual and perceived cricothyroid membrane | Immediately after identifying the cricothyroid membrane using a laryngeal handshake technique | Distances between the center of the actual and perceived cricothyroid membrane is measured using ultrasound. |
| Perceived difficulty during cricothyroid membrane identification | At 5 minutes after identifying the cricothyroid membrane using a laryngeal handshake technique | Anatomical difficulty perceived by the anesthesiologists during cricothyroid membrane identification is assessed (1, very easy; 2, easy; 3, moderate; 4, difficult; and 5, very difficult). |
Countries
South Korea
Outcome results
None listed