Comparative performance of glidescope video laryngoscope and macintosh laryngoscope in children with immobilized cervical spine

摘要

In a crossover randomized clinical study comparing performance of the Glide-Scope video laryngoscope (GVL) and Macintosh laryngoscope in children with immobilized cervical spine, Vlatten et al1 showed that using the GVL resulted in a significantly declined glottic view. In our view, however, there are several aspects of this study that need to be clarified. First, the authors did not describe the types of the GVL used in this study. As yet, there are totally 3 types of GVL available: the conventional GVL, the Cobalt GVL and the Ranger GVL. Also, every device has 2 to 3 reusable or disposable blades available for pediatric patients. The shapes, lengths, and angulations of the blades vary among the 3 GVL devices and between the reusable and disposable GVL blades (http://verathon.com/language/en-us/ products/glidescope.aspx).