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Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Efficacy of the Disposcope endoscope, a new video laryngoscope, for endotracheal intubation in patients with cervical spine immobilisation by semirigid neck collar: comparison with the Macintosh laryngoscope using a simulation study on a manikin.
Emergency Medicine Journal : EMJ 2013 April
OBJECTIVE: To evaluate whether endotracheal intubation in patients with cervical spine immobilisation by a semirigid neck collar is easier using the Disposcope endoscope (DE), a new video laryngoscope, than with the Macintosh laryngoscope (ML).
METHODS: Sixty-eight medical interns who participated in a training programme for endotracheal intubation using the DE and ML were recruited to the randomised crossover trial 1 week after completing the training programme. In the trial, they used both the DE and the ML to perform intubation on a manikin wearing a semirigid neck collar. The time required to view the vocal cords and to complete intubation, successful endotracheal intubation, modified Cormack-Lehane classification (CL grade) and dental injury were recorded and analysed.
RESULTS: The mean (SD) time to view the vocal cords was significantly shorter with the DE than with the ML (10.0 (7.0) vs 20.8 (18.9) s; p<0.0001). There were higher rates of CL grades 1 and 2a (69.1% and 22.1%) using the DE than with the ML (10.3% and 14.7%). All 68 participants had a higher rate of successful endotracheal intubation using the DE than using the ML (68 (100%) vs 47 (69.1%); p<0.0001). It took less time to complete endotracheal intubation with the DE than with the ML (p<0.0001).
CONCLUSIONS: In patients with cervical spine immobilisation by a semirigid neck collar, the DE may be a more effective device for endotracheal intubation than the ML.
METHODS: Sixty-eight medical interns who participated in a training programme for endotracheal intubation using the DE and ML were recruited to the randomised crossover trial 1 week after completing the training programme. In the trial, they used both the DE and the ML to perform intubation on a manikin wearing a semirigid neck collar. The time required to view the vocal cords and to complete intubation, successful endotracheal intubation, modified Cormack-Lehane classification (CL grade) and dental injury were recorded and analysed.
RESULTS: The mean (SD) time to view the vocal cords was significantly shorter with the DE than with the ML (10.0 (7.0) vs 20.8 (18.9) s; p<0.0001). There were higher rates of CL grades 1 and 2a (69.1% and 22.1%) using the DE than with the ML (10.3% and 14.7%). All 68 participants had a higher rate of successful endotracheal intubation using the DE than using the ML (68 (100%) vs 47 (69.1%); p<0.0001). It took less time to complete endotracheal intubation with the DE than with the ML (p<0.0001).
CONCLUSIONS: In patients with cervical spine immobilisation by a semirigid neck collar, the DE may be a more effective device for endotracheal intubation than the ML.
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