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OpenTrials
Completed

NCT Number: NCT00633867

Randomised Controlled Trial of Intubation With the McGrath Series 5 Video Laryngoscope vs the Macintosh Laryngoscope

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.

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Key information

Conditions

Tracheal Intubation

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Aberdeen Royal Hospitals, NHS Grampian

Aberdeen, UK, AB25 2ZN, United Kingdom

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Mcgrath

Device

Tracheal intubation, using Mcgrath video-laryngoscope

Other names: Aircraft Medical McGrath Series 5 Video Laryngoscope

Tracheal intubation using Macintosh Laryngoscope

Device

Tracheal intubation using Macintosh Laryngoscope

Primary outcomes

  1. Intubation Time

    Time frame: At intubation

    Time from anaesthetist picking up laryngoscope until 1st upward capnograph deflection after intubation

Secondary outcomes

  1. Difference in Learning to Use the Scopes

    Time frame: At analysis

    Is there a difference between trainee anaesthetists in learning to use the scopes

  2. Quality of View of the Vocal Cords

    Time frame: At analysis

  3. Number of Attempts to Secure Successful Intubation

    Time frame: At analysis

    Is there a difference in the number of attempts required to secure successful intubation ?

  4. Incidence of Initial Oesophageal Intubation

    Time frame: At analysis

  5. Number of Intubations Taking More Than 70 Seconds

    Time frame: At Analysis

  6. Incidence of Low Arterial Saturation During Intubation

    Time frame: At analysis

  7. Incidence of Visible Trauma to the Airway

    Time frame: At analysis

Sponsors and collaborators

Lead sponsor

NHS Grampian

Other Gov

Registry information

Important dates

Study start
2008
Primary completion
2008
Study completion
2008
First posted
Mar 12, 2008
Registry last updated
Aug 2, 2011

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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