Das Bikramjit, Ahmed Syed Moied, Raza Nadeem
Department of Anaesthesiology, Government Medical College, Haldwani, Uttarakhand, India.
Department of Anaesthesiology, J.N. Medical College, A.M.U., Aligarh, Uttar Pradesh, India.
J Anaesthesiol Clin Pharmacol. 2015 Apr-Jun;31(2):239-41. doi: 10.4103/0970-9185.155156.
MacGrath videolaryngoscope is one of the recent videolaryngoscopes, which can be used to facilitate nasotracheal intubations using Scroeder directional stylet.
15 patients, American Society of Anesthesiologists Grades I-II, undergoing tonsillectomy, requiring nasotracheal intubation were included. All patients were intubated with MacGrath videolaryngoscope and Schroeder stylet. Primary outcome measures were duration and ease of intubation. Overall success rate, number of attempts, modified Cormack-Lehane (C-L) grading, and complications were also recorded.
All 15 intubations were successful during first laryngoscopy attempt. C-L Grade I views were obtained in 14 patients (93%) and Grade II view in one patient (7%). The time required to obtain the best C-L view was 9.4 ± 1.5 s. The time taken to complete tracheal intubation was 34.27 ± 3.38 s. Average numerical rating scale for tracheal intubation was 8.7 ± 0.9. Minor complications occurred in four patients (26.7%).
MacGrath videolaryngoscope produces excellent laryngoscopic views in patients with normal airways. Impaction of tracheal tube on posterior nasopharyngeal wall can be overcome by Schroeder stylet.
麦格拉斯视频喉镜是近年来出现的视频喉镜之一，可用于借助施罗德定向管芯进行鼻气管插管。
纳入15例美国麻醉医师协会分级为I-II级、接受扁桃体切除术且需要鼻气管插管的患者。所有患者均使用麦格拉斯视频喉镜和施罗德管芯进行插管。主要观察指标为插管持续时间和难易程度。还记录了总体成功率、尝试次数、改良的科马克-莱汉内（C-L）分级以及并发症情况。
首次喉镜检查尝试时，所有15例插管均成功。14例患者（93%）获得C-L I级视野，1例患者（7%）获得II级视野。获得最佳C-L视野所需时间为9.4±1.5秒。完成气管插管所需时间为34.27±3.38秒。气管插管的平均数字评分量表评分为8.7±0.9。4例患者（26.7%）出现轻微并发症。
麦格拉斯视频喉镜能为气道正常的患者提供出色的喉镜视野。施罗德管芯可克服气管导管撞击鼻咽后壁的问题。
