Adults 18 to 99, any sex, with Surgery. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Visualization of the Vocal CordsPrimary· From the start time of intubation to time of the end of surgery, up to 12 hours.
The visualization of the vocal cords, defined using the modified Cormack and Lehane classification:
Grade I: Full view of the glottis (vocal cords are completely visible). Grade IIa: Partial view of the glottis (only the posterior portion of the glottis is visible).
Grade IIb: Only the arytenoids or the posterior extremity of the vocal cords are visible (the anterior commissure is not seen).
Grade III: Only the epiglottis is visible (the glottis is not visible). Grade IV: Neither the epiglottis nor the glottis is visible (only the soft palate is seen).
Grade I - Full view of the glottis
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
90
Efficacy of Conventional Direct Laryngoscopy
85
Grade IIa - Partial view of the glottis
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
63
Efficacy of Conventional Direct Laryngoscopy
67
Grade IIb - Only the arytenoids or the posterior extremity of the vocal cords are visible
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
26
Efficacy of Conventional Direct Laryngoscopy
28
Grade III - Only the epiglottis is visible
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
10
Efficacy of Conventional Direct Laryngoscopy
17
Grade IV - Neither the epiglottis nor the glottis is visible
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
4
Efficacy of Conventional Direct Laryngoscopy
4
Number of Participants With 1, 2, 3, and 4 Intubation AttemptsSecondary· From the start time of intubation to time of the end of surgery, up to 12 hours.
An intubation attempt was recorded once the endotracheal tube entered the oral cavity
1 intubation attempt
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
167
Efficacy of Conventional Direct Laryngoscopy
176
2 intubation attempts
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
21
Efficacy of Conventional Direct Laryngoscopy
21
3 intubation attempts
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
0
Efficacy of Conventional Direct Laryngoscopy
1
4 intubation attempts
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
1
Efficacy of Conventional Direct Laryngoscopy
0
Intubation Failure.Secondary· From the start time of intubation to time of the end of surgery, up to 12 hours.
Intubation was considered a failure if there was: (1) a failure to intubate after 3 attempts, (2) the need to switch intubators or intubation device, or (3) the need to stop study per anesthesiologist's discretion.
Group
Value
95% CI
McGrath Videolaryngoscope for Rapid Endotracheal Intubation
3
Efficacy of Conventional Direct Laryngoscopy
1
Sponsor's own description
The study seeks to compare the efficacy of conventional direct laryngoscopy using a Macintosh blade with the McGrath videolaryngoscope for rapid sequence endotracheal intubation.
Publications & conference data
No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.
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Sponsor: as reported to ClinicalTrials.gov by The Cleveland Clinic
Last refreshed: 3 February 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05850052.