Department of Anesthesiology and Pain Medicine, Chungnam National University School of Medicine, Daejeon, Korea.
Korean J Anesthesiol. 2011 May;60(5):339-43. doi: 10.4097/kjae.2011.60.5.339. Epub 2011 May 31.
The Glidescope Videolaryngoscope (GVL) is a newly developed video laryngoscope. It offers a significantly improved laryngeal view and facilitates endotracheal intubation in difficult airways, but it is controversial in that it offers an improved laryngeal view in normal airways as well. And the price of GVL is expensive. We hypothesized that intubation carried out by fully experienced anesthesiologists using the GVL with appropriate pre-anesthetic preparations offers an improved laryngeal view and shortened intubation time in normal airways. Therefore, the aim of this study was to compare the GVL with the Macintosh laryngoscope in normal airways and to determine whether GVL can substitute the Macintosh laryngoscope.
This study included 60 patients with an ASA physical status of class 1 or 2 requiring tracheal intubation for elective surgery. All patients were randomly allocated into two groups, GVL (group G) or Macintosh (group M). ADS (airway difficulty score) was recorded before induction of anesthesia. The anesthesiologist scored vocal cord visualization using the percentage of glottic opening (POGO) visible and the subjective ease of intubation on a visual analogue scale (VAS). The time required to intubate was recorded by an assistant.
There was a significant increase in POGO when using the GVL (P < 0.05). However, there was no difference in the time required for a successful tracheal intubation using the GVL compared with the Macintosh laryngoscope. The VAS score on the ease of intubation was significantly lower for the GVL than for the Macintosh laryngoscope (P < 0.05).
GVL could be a first-line tool in normal airways.
Glidescope 视频喉镜（GVL）是一种新开发的视频喉镜。它提供了显著改善的喉部视野，并有助于在困难气道中进行气管插管，但它存在争议，因为它在正常气道中也提供了改善的喉部视野。而且 GVL 的价格昂贵。我们假设，在充分准备的麻醉前准备下，由经验丰富的麻醉师使用 GVL 进行插管，可以在正常气道中提供更好的喉部视野并缩短插管时间。因此，本研究的目的是比较 GVL 与 Macintosh 喉镜在正常气道中的效果，并确定 GVL 是否可以替代 Macintosh 喉镜。
本研究纳入了 60 例 ASA 身体状况为 1 级或 2 级、需要进行气管插管的择期手术患者。所有患者均随机分为 GVL（G 组）或 Macintosh（M 组）两组。在麻醉诱导前记录气道困难评分（ADS）。麻醉师使用声带可见度百分比（POGO）和视觉模拟量表（VAS）记录声带可视化的主观插管难易程度评分。由助手记录插管所需的时间。
使用 GVL 时 POGO 显著增加（P < 0.05）。然而，与 Macintosh 喉镜相比，使用 GVL 进行气管插管所需的时间没有差异。使用 GVL 进行插管的 VAS 评分明显低于 Macintosh 喉镜（P < 0.05）。
GVL 可以成为正常气道中的一线工具。
