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.
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.
Study Type
INTERVENTIONAL
Allocation
NA
Masking
SINGLE
Enrollment
50
Patient's neck was flexed using a 4 cm or 8 cm height of pillow
National Medical Center
Seoul, Junggu, South Korea
Laryngeal view as index of ease of insertion
Cormack Lehane grade during endotracheal intubation
Time frame: one year
Discomfort of anesthesiologist during endotracheal intubation
Anesthesiologist can feel difficulties in mouth opening and in insertion of laryngoscopic blade into oral cavity according to the degrees of neck flexion
Time frame: one year
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