Videolaryngoscope versus Macintosh Laryngoscope in Stimulated Patients With Limitation of Neck Movements

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Chaiyaporn Yuksen
Thidathit Prachanukool
Watcharapong Chinsupaluk
Thavinee Trainarongsakul


Background: Endotracheal intubation in patients with suspect cervical spine injury must be done with carefulness because it could cause injury to the cervical spine. Modern equipment are used to help intubation, especially for patients who suspect cervical spine injury.
Objective: To compare the Glidescope video laryngoscope (GVL) with the Macintosh laryngoscope (ML) in manikin with cervical collars.
Methods: 2 groups of participants (Emergency resident: experienced in intubation and 5th year medical students : inexperience in intubation) were randomized to intubate by Glidescope video laryngoscope (GVL) and Macintosh laryngoscope (ML) on a manikin wearing a cervical collar. The time required to intubate, the success rate, the number of intubation attemps and Cormack-Lehane classification (CL) were recorded.
Results: The mean time to intubation was significantly shorter with ML than with GVL especially in experienced group. But for inexperienced group, time to intubation was not different. There was no difference in the success rate of tracheal intubation between GVL and ML. The view of the glottis (CL) was significantly better with the GVL than with the ML especially in inexperienced medical student.
Conclusions: GVL provided better laryngeal view than ML, but it look an additional 6 seconds for tracheal intubation. It had potential advantages over ML for difficult intubation especially in inexperienced medical student. But it had a longer time to intubation.

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How to Cite
Yuksen, C., Prachanukool, T., Chinsupaluk, W., & Trainarongsakul, T. (2014). Videolaryngoscope versus Macintosh Laryngoscope in Stimulated Patients With Limitation of Neck Movements. Ramathibodi Medical Journal, 37(2), 71–80. Retrieved from
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