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The McGrath® MAC videolaryngoscope for nasal intubation

A randomised comparative trial of MacIntosh direct laryngoscopy versus the McGrath® MAC videolaryngoscope

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN34736271
Enrollment
110
Registered
2014-10-07
Start date
2014-10-01
Completion date
Unknown
Last updated
2016-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Oromaxillofacial surgery (OMFS) procedures involving the mandible and intra-oral pathology, requiring nasotracheal intubation: primarily trauma, also abscesses and tumours Surgery

Interventions

Patients presenting with OMFS trauma will form the bulk of the research population. By necessity these patients may be taken to theatre on the day of admission ? we would therefore anticipate waiving

Sponsors

NHS Greater Glasgow and Clyde (UK)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Adults with capacity undergoing general anaesthesia 2. Nasotracheal intubation planned, as agreed by both the anaesthetist and surgeon involved in the patient?s care, with administration of a neuromuscular blocking drug prior to intubation

Exclusion criteria

Exclusion criteria: 1. Planned fibreoptic intubation or surgical airway 2. Manual inline stabilization required, or an external cervical fixation device (e.g. Halo)

Design outcomes

Primary

MeasureTime frame
Use of the McGill?s forceps as an aid to intubation ? this is used as a surrogate for difficulty in positioning the tracheal tube, and subsequent airway tissue trauma. This will be known immediately by the laryngoscopist.

Secondary

MeasureTime frame
1. Number of attempts at laryngoscopy 2. Number of attempts at tracheal tube passage 3. Failures/cross-overs to McGrath® MAC or other rescue technique, including patient wake-up 4. Cormack Lehane classification (CLC) and percentage of glottic opening (POGO) 5. Ease of TT insertion/any ?hold-up? 6. Dental trauma requiring OMFS referral 7. Airway soft tissue (soft palate/tonsillar pillars) requiring ENT/OMFS referral These secondary outcome measures will all be known immediately, again by the laryngoscopist. 8. Incidence of sore throat. will be known after the patient's operation, either from questioning in the recovery room, or later on the ward. In all cases, this will be known within 24 hours.

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026