Tracheal intubation in patients with cervical spine immobilization: a comparison of the Airwayscope, LMA CTrach, and the Macintosh laryngoscopes.
Malik, M A Subramaniam, R Churasia, S Maharaj, C H Harte, B H Laffey, J G
Malik, M A
Subramaniam, R
Churasia, S
Maharaj, C H
Harte, B H
Laffey, J G
Advisors
Editors
Other Contributors
Date
2009-05
Date Submitted
Keywords
Other Subjects
Subject Mesh
Adolescent
Adult
Aged
Aged, 80 and over
Cervical Vertebrae
Equipment Design
Female
Humans
Immobilization
Intubation, Intratracheal
Laryngoscopes
Male
Middle Aged
Single-Blind Method
Young Adult
Adult
Aged
Aged, 80 and over
Cervical Vertebrae
Equipment Design
Female
Humans
Immobilization
Intubation, Intratracheal
Laryngoscopes
Male
Middle Aged
Single-Blind Method
Young Adult
Planned Date
Start Date
Collaborators
Principal Investigators
Alternative Titles
Publisher
Abstract
The purpose of this study was to evaluate the effectiveness of the Pentax AWS, and the LMA CTrach, in comparison with the Macintosh laryngoscope, when performing tracheal intubation in patients with neck immobilization using manual in-line axial cervical spine stabilization.
Ninety patients undergoing anaesthesia who required tracheal intubation were randomly assigned to undergo intubation using a Macintosh (n=30), LMA CTrach (n=30), or AWS (n=30) laryngoscope. All patients were intubated by one of the three anaesthetists familiar with the use of each laryngoscope.
The intubation difficulty scores were significantly higher with the Macintosh laryngoscope and were significantly lower with the AWS compared with the LMA CTrach. All 30 patients were successfully intubated with the Macintosh and the AWS device, compared with 27 patients with the LMA CTrach. The duration of both the first and the successful tracheal intubation attempts was significantly longer with the LMA CTrach compared with the AWS and Macintosh laryngoscopes. A greater number of optimization manoeuvres were required to facilitate tracheal intubation with the LMA CTrach compared with the AWS laryngoscope. The AWS group had a significantly better Cormack and Lehane glottic view obtained at laryngoscopy compared with both other devices.
The AWS laryngoscope has several advantages over the Macintosh laryngoscope, or LMA CTrach, in patients undergoing cervical spine immobilization.
Ninety patients undergoing anaesthesia who required tracheal intubation were randomly assigned to undergo intubation using a Macintosh (n=30), LMA CTrach (n=30), or AWS (n=30) laryngoscope. All patients were intubated by one of the three anaesthetists familiar with the use of each laryngoscope.
The intubation difficulty scores were significantly higher with the Macintosh laryngoscope and were significantly lower with the AWS compared with the LMA CTrach. All 30 patients were successfully intubated with the Macintosh and the AWS device, compared with 27 patients with the LMA CTrach. The duration of both the first and the successful tracheal intubation attempts was significantly longer with the LMA CTrach compared with the AWS and Macintosh laryngoscopes. A greater number of optimization manoeuvres were required to facilitate tracheal intubation with the LMA CTrach compared with the AWS laryngoscope. The AWS group had a significantly better Cormack and Lehane glottic view obtained at laryngoscopy compared with both other devices.
The AWS laryngoscope has several advantages over the Macintosh laryngoscope, or LMA CTrach, in patients undergoing cervical spine immobilization.
Language
en
ISSN
1471-6771
eISSN
ISBN
DOI
10.1093/bja/aep056
PMID
19336535