Bougie Use for Improving First-Pass Success in Novice Intubators

NCT07422467 | Completed

• 1 other identifier: 09.2025.25-0234
• Study Type: interventional
• Target: 136
• Locations: 1 country
• Sites: 1

Brief Summary

This was a prospective, randomized cross-over manikin study in which participants first completed a standardized two-hour theoretical and hands-on training session on airway anatomy, laryngoscopy techniques, and the use of stylet and bougie. Each participant subsequently performed four intubation techniques -direct and video laryngoscopy, each combined with either a stylet or a bougie- according to a randomized sequence on the same airway manikin using a 7.5-mm endotracheal tube. The primary outcome was first-pass success, defined as successful tracheal tube placement on the first attempt. The secondary outcome was intubation time, measured from initial contact of the laryngoscope blade with the manikin to successful advancement and release of the tube; attempts exceeding five minutes were classified as failed first-pass attempts.

Conditions

Endotracheal Intubation; Novice Doctor

Keywords

Airway management; Bougie; Stylet; novice intubator; Video laryngoscope

Outcome Measures

Primary Outcomes (1)

• Firs pass success

  The primary outcome of the study was first-pass success for each intubation technique. First-pass success was defined as successful placement of the endotracheal tube into the trachea on the first attempt.

  During procedure

Study Arms (4)

Group A

ACTIVE COMPARATOR

All novice intubators in Group A performed, in sequence, video laryngoscope with bougie, direct laryngoscope with bougie, video laryngoscope with stylet, and direct laryngoscope with stylet.

Other: video laryngoscope+ bougie,; Other: direct laryngoscope+ bougie; Other: video laryngoscope+stylet; Other: direct laryngoscope+stylet

Group B

ACTIVE COMPARATOR

All novice intubators in Group B performed, in sequence, direct laryngoscope with bougie, video laryngoscope with bougie, direct laryngoscope with stylet, and video laryngoscope with stylet.

Other: video laryngoscope+ bougie,; Other: direct laryngoscope+ bougie; Other: video laryngoscope+stylet; Other: direct laryngoscope+stylet

Group C

ACTIVE COMPARATOR

All novice intubators in Group C performed, in sequence, video laryngoscope with stylet, direct laryngoscope with stylet, video laryngoscope with bougie, and direct laryngoscope with bougie.

Other: video laryngoscope+ bougie,; Other: direct laryngoscope+ bougie; Other: video laryngoscope+stylet; Other: direct laryngoscope+stylet

Group D

ACTIVE COMPARATOR

All novice intubators in Group D performed, in sequence, direct laryngoscope with stylet, video laryngoscope with stylet, direct laryngoscope with bougie, and video laryngoscope with bougie.

Other: video laryngoscope+ bougie,; Other: direct laryngoscope+ bougie; Other: video laryngoscope+stylet; Other: direct laryngoscope+stylet

Interventions

video laryngoscope+ bougie, OTHER

All novice intubators performed these four intubation techniques in different sequences depending on the group allocation.

Group A; Group B; Group C; Group D

direct laryngoscope+ bougie OTHER

All novice intubators in Group A performed, in sequence, video laryngoscope with bougie, direct laryngoscope with bougie, video laryngoscope with stylet, and direct laryngoscope with stylet.

Group A; Group B; Group C; Group D

video laryngoscope+stylet OTHER

All novice intubators in Group A performed, in sequence, video laryngoscope with bougie, direct laryngoscope with bougie, video laryngoscope with stylet, and direct laryngoscope with stylet.

Group A; Group B; Group C; Group D

direct laryngoscope+stylet OTHER

All novice intubators in Group A performed, in sequence, video laryngoscope with bougie, direct laryngoscope with bougie, video laryngoscope with stylet, and direct laryngoscope with stylet.

Group A; Group B; Group C; Group D

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Sixth-year medical students
• Not on clinical duty at the time of participation
• No scheduled clinical duty on the following day
• Free of any acute illness at the time of the study

You may not qualify if:

• Any prior real-world experience in endotracheal intubation

Sponsors & Collaborators

• Marmara University Pendik Training and Research Hospital: lead

Study Sites (1)

Marmara University Pendik Training and Research Hospital

Istanbul, Turkey (Türkiye)

Location

Study Officials

• Emre Kudu, MD

  Marmara University Pendik Training and Research Hospital

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Model Details: randomized cross-over manikin study

Study Record Dates

• First Submitted: February 10, 2026
• First Posted: February 20, 2026
• Study Start: May 1, 2025
• Primary Completion: August 10, 2025
• Study Completion: August 10, 2025
• Last Updated: February 20, 2026

Record last verified: 2026-02

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)