可变头位对声门暴露的影响及在气管插管中的应用

Effect of Changeable Head-Position on Glottis Exposure and Use in Endotreacheal Intubation

目的：探讨全麻经口腔气管插管时可变头位对声门显露质量的影响。方法：180例全麻插管病人（ASAⅠ-Ⅱ）诱导（咪达唑仑0．2mg·kg^-1，芬太尼0．004mg·kg^-1，维库溴铵0．1mg·kg^-1），成功后分别在头简单过伸位下和可变头位下用macintosh喉镜显露声门，记录Cormack and Lehane评分。结果：Cormack and Lehane评分Ⅰ、Ⅱ级头简单过伸位下所占比例为86．1％，可变头住下所占比例为98．9％，两者比较差异有显著性（P〈0．05）。结论：可变头位能显著提高声门的显露质量。

Objective： To investigate the effect of changeable head position on glottis exposure and its use during general anesthesia by orotreacheal intubation. Methods： 180 patients for general anesthesia were induced with midazolam 0. 2mg/kg, fentanyl 0.004mg/kg and vecuronium 0. 1mg/kg , and then the glottises were exposed with macintosh laryngoscopy under simple head extension and changeable head position respectively by a skilled anesthetist, recording the Cormack and Lehane grade. Results： The ratio of Cormack and Lehane scope Ⅰ , Ⅱ was 86.1% under simple head extension, and 98.9% under the changeable head position （P 〈 0.05）. Conclusion： Changeable head position can improve the glottis visualization under direct laryngoscopy in a great degree.