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Completed

NCT Number: NCT02051400

Evaluation of McGrath® MAC Video Laryngoscope

The purpose of this study is to evaluate whether the McGrath® MAC video laryngoscope is equal or superior when compared to the Glidescope® Ranger and the Macintosh laryngoscope for novice users in a simulated airway manikin.

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Key information

Conditions

Intubation; Difficult

Age range

22 year–33 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Hanyang University Guri Hospital

Guri-si, Kyeonggi-do, 471-701, South Korea

About this study

Investigators compared two portable video laryngoscopes (the GlidesScope® Ranger (Verathon Inc, Bothell, WA, USA) and the McGrath® MAC (Aircraft Medical Ltd, Edinburgh, UK)) and a German type Macintosh metal blade with a fiberoptic light. A blade size of 4 was used on all devices. All intubations using video laryngoscopes were performed according to the manufacturers' instructions. A specialised rigid stylet (the GlideRite®) was used with the Glidescope® and a flexible plastic stylet bent with a hockey stick curvature, was used with the McGrath® MAC and the Macintosh laryngoscope. A size 7.5 endotracheal tube (Mallinckrodt™ Hi-Lo Oral/Nasal Tracheal Tube Cuffed Murphy Eye, Covidien, Ireland) was used with all the laryngoscopes.

All participants were randomly divided into 3 device groups. Each group was allowed to attempt to perform endotracheal intubation five more times using the Laerdal® Airway Management Trainer (Laerdal Medical Korea Ltd., Seoul, Korea) with the normal airway setting. After completing the normal airway session, the participants performed another five attempts with the neck immobilisation setting using a neck collar.

The sequence in which the three devices were used was randomly assigned, and all participants performed the same sequence at intervals of five weeks during the study.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Medical students without previous experience of intubation

Exclusion criteria

  • Heart, wrist, or low back disease or who were pregnant were excluded

Treatment and study plan

the McGrath® MAC video laryngoscope

Device

the GlidesScope® Ranger video laryngoscope

Device

the Macintosh laryngoscope

Device

Primary outcomes

  1. Intubation parameter

    Time frame: 1st intubation attempt, an expected average of 1 min

    • The rate for successful intubation
    • Time to intubation
    • The Cormack-Lehane grade at laryngoscopy

  2. Intubation parameter

    Time frame: 2nd intubation attempt, an expected average of 1 min

    • The rate for successful intubation
    • Time to intubation
    • The Cormack-Lehane grade at laryngoscopy

  3. Intubation parameter

    Time frame: 3rd intubation attempt, an expected average of 1 min

    • The rate for successful intubation
    • Time to intubation
    • The Cormack-Lehane grade at laryngoscopy

  4. Intubation parameter

    Time frame: 4th intubation attempt, an expected average of 1 min

    • The rate for successful intubation
    • Time to intubation
    • The Cormack-Lehane grade at laryngoscopy

  5. Intubation parameter

    Time frame: 5th intubation attempt, an expected average of 1 min

    • The rate for successful intubation
    • Time to intubation
    • The Cormack-Lehane grade at laryngoscopy

Sponsors and collaborators

Lead sponsor

Hanyang University

Other

Registry information

Official study title

Evaluation of McGrath® MAC Using Glidescope® Ranger for Novice Providers in a Simulated Difficult Airway: A Randomised Manikin Study

Acronym: EMMVL

Important dates

Study start
2013
Primary completion
2013
Study completion
2013
First posted
Jan 31, 2014
Registry last updated
Jan 31, 2014

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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