Personalized Selection of Hyperangulated vs. Macintosh Videolaryngoscope Blades

NCT07370883 | Not Yet Recruiting

• 1 other identifier: 2510-078-1683
• Study Type: interventional
• Target: 524
• Locations: 0 countries
• Sites: N/A

Brief Summary

This study aims to determine whether hyperangulated blades have a higher intubation success rate than Macintosh blades in patients undergoing general anesthesia, and to identify patient subgroups in which hyperangulated blades are particularly advantageous for tracheal intubation.

Conditions

Airway Assessment

Outcome Measures

Primary Outcomes (1)

• first attempt success rate

  successful placement of the tracheal tube into the airway on the first attempt within 60 seconds, without the need for assistance from another operator or the use of adjunctive airway maneuvers.

  At the time of tracheal intubation (up to 10 min)

Secondary Outcomes (8)

• Preoperative airway assessment included the modified Mallampati classification

  before intubation (up to 10 min)

• overall tracheal intubation success rate

  At the time of tracheal intubation (up to 10 min)

• the number of attempts required to achieve successful intubation

  At the time of tracheal intubation (up to 10 min)

• the use of adjunctive airway maneuver

  At the time of tracheal intubation (up to 10 min)

• time to obtain a laryngeal view with the first blade

  At the time of tracheal intubation (up to 10 min)

Study Arms (2)

Macintosh group

ACTIVE COMPARATOR

tracheal intubation was performed using a standard Macintosh-type videolaryngoscope blade

Device: Macintosh group

Hyperangulated group

EXPERIMENTAL

tracheal intubation was performed using a hyperangulated videolaryngoscope blade

Device: hyperangulated group

Interventions

hyperangulated group DEVICE

tracheal intubation was performed using a hyperangulated videolaryngoscope blade

Hyperangulated group

Macintosh group DEVICE

tracheal intubation was performed using a standard Macintosh-type videolaryngoscope blade

Macintosh group

Eligibility Criteria

• Age: 19 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Adult patients aged ≥ 19 years undergoing surgery under general anesthesia.

You may not qualify if:

• Patients who did not provide informed consent
• Patients with severely loose or unstable teeth
• Patients with cervical spine disease
• Patients with American Society of Anesthesiologists (ASA) physical status class IV or higher
• Pregnant women
• Patients with head and neck cancer
• Patients who had previous radiotherapy for head and neck cancer
• Patients deemed unsuitable for study participation at the investigator's discretion

Sponsors & Collaborators

• Seoul National University Hospital: lead

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 4, 2026
• First Posted: January 27, 2026
• Study Start: January 31, 2026
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): December 31, 2027
• Last Updated: January 28, 2026

Record last verified: 2025-12