An interventional study of the McGrath® MAC video laryngoscope and the GlidesScope® Ranger video laryngoscope in Intubation; Difficult, sponsored by Hanyang University. Completed at 1 site in Korea, Republic of. Open to participants aged 22 Years to 33 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-01-31.
Sponsored by Hanyang University · Not applicable, Interventional, and Basic science
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.
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.
Hanyang University is the lead sponsor of 51 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Participants perform five intubation attempts using the airway manikin with the normal airway setting. After completing the normal airway session, the participants performed another five attempts with the neck immobilization setting using a neck collar.
Device: the McGrath® MAC video laryngoscope · Device: the GlidesScope® Ranger video laryngoscope · Device: the Macintosh laryngoscope
Participants perform five intubation attempts using the airway manikin with the normal airway setting. After completing the normal airway session, the participants performed another five attempts with the neck immobilization setting using a neck collar.
Device: the McGrath® MAC video laryngoscope · Device: the GlidesScope® Ranger video laryngoscope · Device: the Macintosh laryngoscope
Participants perform five intubation attempts using the airway manikin with the normal airway setting. After completing the normal airway session, the participants performed another five attempts with the neck immobilization setting using a neck collar.
Device: the McGrath® MAC video laryngoscope · Device: the GlidesScope® Ranger video laryngoscope · Device: the Macintosh laryngoscope
Intubation parameter
1. The rate for successful intubation 2. Time to intubation 3. The Cormack-Lehane grade at laryngoscopy
Time frame: 1st intubation attempt, an expected average of 1 min
Intubation parameter
1. The rate for successful intubation 2. Time to intubation 3. The Cormack-Lehane grade at laryngoscopy
Time frame: 2nd intubation attempt, an expected average of 1 min
Intubation parameter
1. The rate for successful intubation 2. Time to intubation 3. The Cormack-Lehane grade at laryngoscopy
Time frame: 3rd intubation attempt, an expected average of 1 min
Intubation parameter
1. The rate for successful intubation 2. Time to intubation 3. The Cormack-Lehane grade at laryngoscopy
Time frame: 4th intubation attempt, an expected average of 1 min
Intubation parameter
1. The rate for successful intubation 2. Time to intubation 3. The Cormack-Lehane grade at laryngoscopy
Time frame: 5th intubation attempt, an expected average of 1 min
This study is completed, as verified in Jan 2014. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Hanyang University