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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Conventional group | Active Comparator | Videolaryngoscopy is performed without two-handed jaw thrust. |
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| Jaw thrust group | Experimental | Videolaryngoscopy is performed with two-handed jaw thrust. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Videolaryngoscopy | Other | Videolaryngoscopy is performed. |
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| Measure | Description | Time Frame |
|---|---|---|
| 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. | During videolaryngoscopy using a McGrath videolaryngoscope |
| Measure | Description | Time Frame |
|---|---|---|
| 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). | During videolaryngoscopy |
| POGO (percentage of glottic opening) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Jin-Young Hwang | Contact | 82-2-870-2518 | jy.hwang.an@gmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Hwang | SMG-SNU Boramae Medical Center | Principal Investigator |
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POGO (percentage of glottic opening, from 0% to 100%) is recorded. |
| During videolaryngoscopy |
| Intubation time | Intubation time is defined as time from laryngoscope insertion into the oral cavity to first EtCO₂ detection | 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. | 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. | During videolaryngoscopy |
| Occurrence of palatopharyngeal mucosal injury. | Palatopharyngeal mucosal injury in the soft palate and oropharynx is evaluated using a video laryngoscope. | 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. | 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. | During videolaryngoscopy |