Laryngeal exposure during laryngoscopy is better in the 25° back-up position than in the supine position
Laryngeal exposure during laryngoscopy is better in the 25° back-up position than in the supine position
复制标题
DOI：
10.1093/bja/aem095
复制
发表时间：
2007-10-01
影响因子：
9.8
通讯作者：
Kim, D. O.
中科院分区：
文献类型：
--
作者：
Lee, B. J.;Kang, J. M.;Kim, D. O.
背景声门的良好可视性对气管插管很重要。本研究旨在评估25度支撑位是否能提高喉镜检查中喉部视图的质量。对40例麻醉患者进行了弯型喉镜检查。将患者随机分为两组。用刚性0度内窥镜捕获喉部视图。记录A组（n=20）中每例患者在喉镜检查期间的视图，患者首先以仰卧位躺下，然后以25度备用位躺下。B组（n=20）患者的喉部视图首先在患者处于25度备用位时采集，然后在患者处于平卧位时采集。麻醉师对该位置不知情，使用声门开放百分比（POGO）评分对图像质量进行分级。两种体位比较，平均POGO评分从仰卧位的42.2（27.4）%增加到25 °后仰位的66.8（27.6）%（P < 0.0001）。在喉镜检查过程中，通过POGO评分评估，与平卧位相比，25度后仰位的喉部视图显著改善。
Background. Good visualization of the glottis is important for tracheal intubation. This study evaluated whether the 25 degrees back-up position improves the quality of the laryngeal view during laryngoscopy.Methods. Laryngoscopy with a curved blade was performed on 40 anaesthetized patients. The patients were randomly assigned to two groups. Laryngeal views were captured with a rigid 0 degrees endoscope. Views were recorded for each patient in Group A (n=20) during laryngoscopies performed with the patient lying first in the supine position and then in the 25 degrees back-up position. Laryngeal views for patients in Group B (n=20) were first captured while the patient was in the 25 degrees back-up position and then while the patient was in the flat supine position. An anaesthetist blinded to the position graded the quality of the images using the percentage of glottic opening (POGO) score.Results. Comparing the two positions, mean (SD) POGO scores increased significantly from 42.2 (27.4)% in supine position to 66.8 (27.6)% in 25 degrees back-up position (P < 0.0001).Conclusions. During laryngoscopy, the laryngeal view, as assessed by POGO scores, improves significantly in the 25 degrees back-up position when compared with the flat supine position.