Comparison between TruviewTM EVO2 optic laryngoscope and Macintosh laryngoscope in patients receiving cervical vertebral surgery
Journal Title: Di-er Junyi Daxue Xuebao - Year 2008, Vol 29, Issue 5
Abstract
Objective：To evaluate the clinical value of TruviewTM EVO2 optic laryngoscope by comparing it with the Macintosh laryngoscope in patients receiving cervical vertebral surgery.Methods: One hundred patients scheduled for elective cervical vertebral surgery were enrolled in this randomized crossover study.After induction,the patients’ glottis in group A (n=50) was displayed by Macintosh laryngoscope and the Cormack-Lehane (C/L) grade was recorded,and then optic laryngoscope was employed to display the laryngeal structure.The order of laryngoscopy attempts was reversed in group B (n=50). Parameters recorded included demographics,airway assessment features (BMI,thyromental distance,mandibular size,mouth opening,mallampati oropharyngeal scale,and neck movement),C/L grade,laryngoscopic force applied,duration of intubation, difficulties of laryngeal view and injury of upper airway.Results: There were no significant difference in demographics,airway assessment features,C/L grade and duration of intubation between the 2 groups,whereas the laryngoscopic force in group A was significantly lower than that in group B(P<0.05).The C/L grade obtained with optic laryngoscope was 69265 (ⅠⅡⅢ）,which was significantly better than that with Macintosh laryngoscope (264628,P<0.001).A poor laryngeal view of 5% was obtained with optic laryngoscope,which was significantly better than that with Macintosh laryngoscope (28%,P<0.001).There was significant association between airway assessment features and C/L grade or laryngoscopic force (P<0.05).Conclusion: The TruviewTM EVO2 optic laryngoscope has better glottic view and lighter laryngoscopic force than those of Macintosh laryngoscope,and may have potential advantages for managing the difficult airways for cervical vertebral surgery.
Authors and Affiliations
Tian-shu WANG, Jian-er DU, Xiao-hua FAN, Jin-bao LI, Xiao-ming DENG
Keywords
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