N/A
N=120
Randomised Controlled Trial of Intubation With the McGrath Series 5 Video Laryngoscope vs the Macintosh Laryngoscope
Tracheal Intubation
Bottom Line
View on ClinicalTrials.gov: NCT00633867 ↗Enrolled (actual)
120
Serious AEs
0.0%
Results posted
Mar 2010
Primary outcome: Primary: Intubation Time — 47.0; 29.5 seconds — p=<0.01
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- McGrath (Device); Tracheal intubation using Macintosh Laryngoscope (Device)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- NHS Grampian
- Primary completion
- Aug 2008
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Intubation Time |
47.0; 29.5 | <0.01 sig |
| SECONDARY Difference in Learning to Use the Scopes |
— | — |
| SECONDARY Quality of View of the Vocal Cords |
— | — |
| SECONDARY Number of Attempts to Secure Successful Intubation |
— | — |
| SECONDARY Incidence of Initial Oesophageal Intubation |
— | — |
| SECONDARY Number of Intubations Taking More Than 70 Seconds |
— | — |
| SECONDARY Incidence of Low Arterial Saturation During Intubation |
— | — |
| SECONDARY Incidence of Visible Trauma to the Airway |
— | — |
Summary
The simplicity of use and intuitive function of the McGrath video-laryngoscope suggests it may have a bigger role than as a back-up to conventional direct laryngoscopy and could possibly be the first-line laryngoscope for situations where difficult intubations are more likely or more hazardous. The incidence of difficult or failed intubation for an individual anaesthetist is related to their experience, decreasing as experience increases. The purpose of this trial is to evaluate the McGrath laryngoscope when used by relatively inexperienced anaesthetists, who are those most likely to encounter difficulties.
The null hypotheses to be tested is that there is no difference between the Macintosh and McGrath laryngoscope in terms of ease and success in intubation.
Eligibility Criteria
Inclusion Criteria
- Adults (18 years and over) scheduled for elective surgery whose anaesthetic plan would normally include oral intubation using a Macintosh laryngoscope blade after induction of general anaesthesia and who have given valid informed consent.
Exclusion Criteria
- Patients requiring special techniques for intubation such as rapid sequence induction
- Adults who have learning difficulties
- Are unconscious or very severely ill
- Have a terminal illness; are in an emergency situation
- Have a mental illness
- Have dementia
- Prisoners
- Those who could be considered to have a particularly dependent relationship with the investigator and other vulnerable groups.
Data sourced from ClinicalTrials.gov (NCT00633867). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.