Initial clinical experience of the MedAn videolaryngoscope with the Nishikawa blade. (June 2022) - Wang, Mingquan
Abstract: Background: The MedAn videolaryngoscope with the Nishikawa blade has been designed to make videolaryngoscopy and tracheal intubation safer and more successful. Aim: We aimed to preliminarily evaluate the performance of this new videolaryngoscope system for routine tracheal intubation at a teaching hospital. Methods: A total of 243 patients with apparently normal airways scheduled for elective surgery under general anesthesia were randomly assigned to the consultant or trainee group according to the actual operation schedule. Video clips of videolaryngoscopic intubation were recorded to analyze the relevant parameters. The primary outcome was the first-attempt intubation success rate. The secondary outcomes included the total time to successful intubation (laryngoscopy and intubation times) on the first attempt and recorded soft tissue injury. Results: The first-attempt intubation success rate was 98.8% (240/243). The median total time to intubation on the first attempt was 26.0 s, and it was longer in the trainee group than in the consultant group (median, 28.0 vs. 23.0 s, p < 0.001). Soft tissue injury was not observed. Conclusion: The MedAn videolaryngoscope with the Nishikawa blade can provide an excellent laryngeal view and sufficient intubation pathway for safe, easy, and effective intubation in patients with apparently normal airways. Highlights: The MedAn videolaryngoscope with the Nishikawa blade makes intubation safe and easy. The blade tip shown on the screen provides visual guidance for precise and safe laryngoscopy. The Nishikawa blade can create sufficient airway space for ease of intubation. The first-attempt success rate of intubation was 98.8% without soft tissue injury. The total median time to successful intubation on the first attempt was 26.0 s.