两种视频喉镜与传统喉镜用于全麻气管插管的比较

目的 比较2种便携式视频喉镜与传统Macintosh喉镜在全身麻醉诱导后气管插管时声门显露的情况、插管成功率及插管并发症等方面的差异。方法90例ASAⅠ～Ⅱ级行择期气管插管全麻成年手术患者知情同意后随机分为2组，McGrath喉镜组和易安视频喉镜组，每组45例。手术患者全身麻醉诱导后按照经典的气管插管方法，先用Macintosh喉镜观察声门显露，再用McGrath（McGrath喉镜组）或易安视频喉镜（易安视频喉镜组）观察声门显露并完成气管插管。记录不同喉镜下声门显露分级、插管次数、气管插管时间及插管相关并发症的发生率。结果与传统Macintosh喉镜相比，易安视频及McGrath喉镜组声门显露分级显著提高（P〈O.05）。而易安视频与McGrath喉镜相比，声门显露改善效果、插管时间及一次插管成功率等方面差异均没有统计学意义（P〉0.05）。结论McGrath和易安视频喉镜与传统Macintosh喉镜相比，均能改善声门显露，提高气管插管成功率，但并不能减少气管插管相关并发症。

Comparison between 2 portable video laryngoscopes and Macintosh laryngoscope in airway intubation under general anesthesia

Objective To compare the differences in glottis exposure, success rate of intubation and resulting complications, in airway intubation with 2 portable video laryngoscopes and the Macintosh laryngoscope under general anesthesia. Methods Ninety ASA grade Ⅰ and Ⅱ patients receiving selective airway intubation under general anesthesia were randomly assigned to 2 groups. Following general anesthesia and with classical airway intubation methods, first the Macintosh laryngoscope was used to expose and view the glottis, then intubation procedures were completed under the video laryngoscopes. Grades of glottis exposure view, number of attempts of intubation, ease of intubation and resulting complications were monitored and recorded. Results Compared with the Macintosh laryngoscope, both the Yi-an and the McGratb video laryngoscopes provided significantly much better view in glottis exposure （27/45：29/ 45, P〈0.05）. There were no statistically significant differences in the improvement of view, the ease and success rate of intubation, when comparisons were made between the two video laryngoscopes （P〈0.05）. Conclusion Both video laryngoscopes could provide a superior view of glottis, facilitating easier intubation, when compared with the Macintosh laryngoscope, however, complications induced by airway intubation could not be avoided.