A Comparison of the Ease of Tracheal Intubation Using a McGrath MAC Laryngoscope and a Standard MacIntosh Laryngoscope

NHS Tayside158 enrolled

Overview

Videolaryngoscopes offer the potential to make tracheal intubation easier for the anaesthetist and less traumatic for the patient. This study aims to compare the intubation difficulty scores (a validated scoring system for ease of intubation) using the McGrath MAC as a videolaryngoscope, the McGrath MAC only as a direct laryngoscope (without video screen) and the MacIntosh laryngoscopes.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

158

Conditions

Tracheal Intubation

Interventions

LaryngoscopyDEVICE

After establishing full monitoring, inducing general anaesthesia and ensuring paralysis laryngoscopy is performed and the patient's trachea intubated.

Eligibility

Sex: ALLMin age: 16 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Elective procedure requiring oral tracheal tube intubation * Over 16 years of age * Airway assessment suggests to the anaesthetist that a standard MacIntosh laryngoscope approach to intubation would be appropriate. Exclusion Criteria: * Emergency procedure * Less than 16 years of age * Unable to consent * Requiring Rapid Sequence Induction (a specialised anaesthetic induction technique) * Predicted difficult intubation * Not suitable for the standardised induction technique

Locations (1)

NHS Tayside

Tayside, Tayside, United Kingdom

Outcomes

Primary Outcomes

Intubation Difficulty Score

The Intubation Difficulty Scale (IDS) is a numerical score based on seven parameters. The scoring of each parameter represents a divergence from an 'ideal' condition and the total score represents a sum divergence from a zero difficulty ideal intubation. The seven parameters are number of supplementary attempts, number of supplementary operators, number and type of alternative techniques used, laryngoscopic grade, subjective lifting force, the use of external laryngeal manipulation and mobility or position of the vocal cords.

Time frame: 5 minutes

Secondary Outcomes

Time to intubation

Time frame: 5 minutes

Number and types of alternative techniques used

Time frame: 5 minutes

Perception of force used

Time frame: 5 minutes

Complications

Time frame: 5 minutes

Ease of intubation

Time frame: 5 minutes

Failure to intubate

Time frame: 5 minutes

Data from ClinicalTrials.gov

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