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NCT Number: NCT07626905

Effect of Jaw Thrust on Endotracheal Intubation Using a Videolaryngoscope

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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Key information

Conditions

Intubation

Age range

19 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adult patients undergoing elective surgery under general anesthesia

Exclusion criteria

  • Predicted difficulty airway
  • Structural anomalies or operation history in the upper airway, head and neck
  • Risk of aspiration
  • Weak teeth

Treatment and study plan

Videolaryngoscopy

Other

Videolaryngoscopy is performed.

Primary outcomes

  1. Need for additional maneuvers for tracheal tube advancement

    Time frame: During videolaryngoscopy using a McGrath videolaryngoscope

    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.

Secondary outcomes

  1. Operator-rated difficulty of tracheal tube advancement

    Time frame: During videolaryngoscopy

    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).

  2. POGO (percentage of glottic opening)

    Time frame: During videolaryngoscopy

    POGO (percentage of glottic opening, from 0% to 100%) is recorded.

  3. Intubation time

    Time frame: During videolaryngoscopy

    Intubation time is defined as time from laryngoscope insertion into the oral cavity to first EtCO₂ detection

  4. modified intubation difficulty scale

    Time frame: During videolaryngoscopy

    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.

  5. Occurrence of dental contact with the laryngoscope blade

    Time frame: During videolaryngoscopy

    Dental contact was defined as contact between the laryngoscope blade and the patient's teeth during videolaryngoscopy.

  6. Occurrence of palatopharyngeal mucosal injury.

    Time frame: After completion of tracheal intubation

    Palatopharyngeal mucosal injury in the soft palate and oropharynx is evaluated using a video laryngoscope.

  7. Need for lifting force or laryngeal pressure for laryngeal exposure

    Time frame: During videolaryngoscopy

    Need for lifting force or laryngeal pressure for laryngeal exposure is recorded.

  8. Need for lifting force or laryngeal pressure for advancement of the tube into the glottis

    Time frame: During videolaryngoscopy

    need for lifting force or laryngeal pressure for advancement of the tube into the glottis is recorded.

Study contacts

Contact information is provided by the study sponsor or research team.

Jin-Young Hwang

CONTACT

[email protected]

82-2-870-2518

Sponsors and collaborators

Lead sponsor

SMG-SNU Boramae Medical Center

Other

Registry information

Official study title

Effect of Jaw Thrust on Tracheal Tube Advancement During McGrath Videolaryngoscopic Intubation

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Jun 4, 2026
Registry last updated
Jun 11, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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