In this study, the investigators evaluate the effect of head positions (simple extension vs. sniffing position vs. head elevation) on endotracheal intubation using a videolaryngoscope.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Enrollment
174
Endotracheal intubation is performed in simple head extension or sniffing position using a McGrath MAC videolaryngoscope.
Seoul Metropolitan Government Seoul National University Boramae Medical Center
Seoul, South Korea
Ease of intubation
Ease of endotracheal intubation is assessed using the intubation difficulty scale. Intubation difficulty scale includes number of attempts, number of operators, number of alternative techniques, glottic opening and so on.
Time frame: Procedure (During endotracheal intubation)
Percentage of glottic opening (POGO) score
POGO score is recorded during endotracheal intubation (0%: no visualization of glottic opening; 100%: entire visualization of the glottic opening).
Time frame: Procedure (During endotracheal intubation)
Number of attempts
Number of attempts for endotracheal intubation is recorded.
Time frame: Procedure (At the end of endotracheal intubation)
Intubation time
The time taken for endotracheal intubation is recorded.
Time frame: Procedure (During endotracheal intubation)
Palatopharyngeal wall injury
Presence of palatopharyngeal wall injury is observed.
Time frame: Procedure (During endotracheal intubation)
Lifting force for exposure of the glottis
Requirement for lifting force to expose the glottis is recorded during videolaryngoscopy
Time frame: Procedure (During endotracheal intubation)
Laryngeal pressure for exposure of the glottis
Requirement for laryngeal force to expose the glottis is recorded during videolaryngoscopy
Time frame: Procedure (During endotracheal intubation)
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Lifting force for advancing an endotracheal tube into the larynx
Requirement for lifting force is recorded during the advancement of the endotracheal tube into the larynx.
Time frame: Procedure (During endotracheal intubation)
Laryngeal pressure for advancing an endotracheal tube into the larynx.
Requirement for laryngeal pressure is recorded during the advancement of the endotracheal tube into the larynx.
Time frame: Procedure (During endotracheal intubation)