[Comparative study of the KingVision videolaryngoscope and Airwayscope using manikins].

BACKGROUND: KingVision (KV) is a new videolaryngoscope. In this study, we compared the ease of use of the KV with the Airwayscope (AWS) by experienced personnel in a simulated manikin. METHODS: Twenty-eight anesthesiologists participated in this study. We used an advanced patient simulator (AIRSIM) to simulate normal manikin and difficult airway scenarios including cervical spine rigidity and limited mouth opening. We compared the time required for visualization of the glottis (Tv) and tracheal intubation (Ti), and analyzed the percentage of glottic opening (POGO) score and the success rates for tracheal intubation. RESULTS: In normal manikin, the Tv and Ti with the KV were significantly shorter than with the AWS (P < 0.05). The POGO score with the KV was higher than with the AWS (P < 0.05). In difficult airway scenarios including both cervical spine rigidity and limited mouth opening, the Tv and Ti with the KV were shorter than with only the AWS (P < 0.05). There is not much difference between KV and AWS regarding the POGO score in difficult airway. CONCLUSIONS: KV may be a suitable device for routine anesthesia care and difficult airway intubation. Further studies in a clinical setting are necessary to confirm these findings.

[Tracheal intubation using Airtraq optical laryngoscope in an adult patient with Goldenhar syndrome].

A 23-year-old woman with Goldenhar syndrome and conductive deafness was scheduled for tympanoplasty. Goldenhar syndrome is a developmental disorder characterized by ear malformation, mandibular hypoplasia, and vertebral anomalies. Furthermore, she had micrognathia, trismus, and mandibular hypoplasia. Awake taracheal intubation was attempted to prevent airway obstruction, because we had anticipated her difficult airway (micrognathia, trismus, and mandibular hypoplasia). The vocal cords were visualized with a Cormac and Lehane grade I, using the Airtraq optical laryngoscope Small (Size 2), under sedation. Then, an endotracheal tube was inserted after induction of general anesthesia. This is the first case report on the successful orotracheal intubation using Airtraq in an adult with Goldenhar syndrome.