Intubation; Difficult
Conditions
Brief summary
The purpose of this study is to investigate whether degree of neck flexion affect on laryngeal view and discomfort during endotracheal intubation in adult patients.
Detailed description
The neck flexion using a 8 to 10 cm head elevation has been suggested to align laryngeal, pharyngeal and oral axes and facilitate endotracheal intubation by direct laryngoscopy. There have been scarce clinical studies about the appropriate degree of neck flexion for endotracheal intubation. In the present study, the laryngeal view and physician's discomfort during endotracheal intubation were evaluated according to the two degrees of neck flexion(4 cm vs 8 cm) using a 4 or 8 cm height of pillows, respectively, in adult patients.
Interventions
OTHERNeck flexion
Patient's neck was flexed using a 4 cm or 8 cm height of pillow
Sponsors
National Medical Center, Seoul
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
Yes
Inclusion criteria
* Elective operation time ≤2hrs * American Society of Anesthesiologist, Physical Status 1 or 2 * age ; 18 - 90 years
Exclusion criteria
* patient has upper respiratory infection symptoms * limited mouth opening * teeth problems * expecting difficult airway * congenital heart disease * patient has a possibility of aspiration pneumonia
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Laryngeal view as index of ease of insertion | one year | Cormack Lehane grade during endotracheal intubation |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Discomfort of anesthesiologist during endotracheal intubation | one year | Anesthesiologist can feel difficulties in mouth opening and in insertion of laryngoscopic blade into oral cavity according to the degrees of neck flexion |
Countries
South Korea
Outcome results
None listed