This study is a single-center, prospective, randomized interventional clinical trial designed to evaluate the effect of the jaw thrust maneuver on glottic visualization, tracheal tube delivery, and overall intubation characteristics during videolaryngoscopic intubation under general anesthesia.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
132
Videolaryngoscopy is performed.
Need for additional maneuvers for tracheal tube advancement
Requirement for additional maneuvers to advance the endotracheal tube into the trachea after glottic entry will be recorded. Additional maneuvers are defined as any maneuver required to facilitate tracheal tube advancement after glottic entry, including tube rotation, tube withdrawal and re-advancement, blade repositioning, or external laryngeal manipulation.
Time frame: During videolaryngoscopy using a McGrath videolaryngoscope
Operator-rated difficulty of tracheal tube advancement
The operator rates the subjective difficulty of advancing the endotracheal tube into the trachea using a 10-cm visual analogue scale (0 = extremely easy, 10 = extremely difficult).
Time frame: During videolaryngoscopy
POGO (percentage of glottic opening)
POGO (percentage of glottic opening, from 0% to 100%) is recorded.
Time frame: During videolaryngoscopy
Intubation time
Intubation time is defined as time from laryngoscope insertion into the oral cavity to first EtCO₂ detection
Time frame: During videolaryngoscopy
modified intubation difficulty scale
The mIDS score is evaluated based on parameters such as the number of intubation attempts, number of operators, number of alternative intubation techniques, POGO score, requirement for lifting force or laryngeal pressure, and position of the vocal cords during intubation. The score ranges from 0 to 17. Higher scores mean difficult intubation.
Time frame: During videolaryngoscopy
Occurrence of dental contact with the laryngoscope blade
Dental contact was defined as contact between the laryngoscope blade and the patient's teeth during videolaryngoscopy.
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Time frame: During videolaryngoscopy
Occurrence of palatopharyngeal mucosal injury.
Palatopharyngeal mucosal injury in the soft palate and oropharynx is evaluated using a video laryngoscope.
Time frame: After completion of tracheal intubation
Need for lifting force or laryngeal pressure for laryngeal exposure
Need for lifting force or laryngeal pressure for laryngeal exposure is recorded.
Time frame: During videolaryngoscopy
Need for lifting force or laryngeal pressure for advancement of the tube into the glottis
need for lifting force or laryngeal pressure for advancement of the tube into the glottis is recorded.
Time frame: During videolaryngoscopy