A single-centre, randomised controlled pilot trial comparing performance of direct laryngoscopy versus videolaryngoscopy for endotracheal intubation in surgical patients (MAC-V trial)

Not Applicable

Completed

• Conditions: patients undergoing surgery who require endotracheal intubation; Anaesthesiology - Anaesthetics

• Registration Number: ACTRN12615001267549
• Lead Sponsor: Auckland District Health Board

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2015-11-19
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

Adult patient scheduled for surgery requiring asleep endotracheal intubation
No contra-indication to direct laryngoscopy or videolaryngoscopy
Laryngoscopy for endotracheal intubation is required

Exclusion Criteria

Unable/ Unwilling to consent
Known previous difficult intubation
Emergency surgery
Clinical scenarios where awake or asleep fibreoptic inbutation is the technique of choice
Operating anaesthetist has performed less than 20 videolaryngoscopies

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Incidence of first pass endotracheal intubation. A successful first-pass intubation was defined as a fluid movement from when the endotracheal tube enters the mouth to when it has been positioned during the vocal cords during a single apnoeic episode. Airway adjuncts such as bougie or stylet may be used as could assistance with optimal external laryngeal manipulation (OELM) or suctioning but these must be performed prior the the endotracheal tube entering the patient’s oropharynx. Curtailing the attempt for bag-mask ventilation, repositioning, assistance or additional equipment to those already specified was deemed failure. Attempting to pass the tube multiple times (more than twice without success) without adjusting the laryngoscope was also deemed as unsuccessful.[at intervention]

Secondary Outcome Measures

Name	Time	Method
Time to first pass endotracheal intubation.<br>Time to first-pass intubation is defined as the time taken from when the intubator takes the laryngoscope to when endotracheal tube placement is confirmed and end tidal CO2 is recorded on capnography waveform. This will be timwed using a stopwatch.[at intervenion. This is from when the intubator takes the laryngoscope to when endotracheal tube placement is confirmed and end tidal CO2 is recorded on capnography waveform. Please see specific definition above.];performance of techniques measured by intubation difficulty score (IDS)[immediately following intervention];patient harm measured by composite of airway bleeding, mucosal injury and dental damage reported in post anaesthetic care uint[immediately after intervention]