학술논문
Can use of video Laryngoscopes by Emergency Medical Technicians Facilitate Endotracheal Intubation during Continuous Chest Compression? A Manikin Study
Document Type
Article
Source
Hong Kong Journal of Emergency Medicine; September 2014, Vol. 21 Issue: 5 p308-315, 8p
Subject
Language
ISSN
10249079
Abstract
Introduction We conducted this study to evaluate the utility of two video laryngoscopes (VLs) [Pentax-AWS (AWS), GlideScope (GVL)], compared to the conventional Macintosh laryngoscope (ML), on endotracheal intubation (ETI) involving chest compressions by Level 1 Korean emergency medical technicians (EMTs) who are the equivalent of EMT-I in the United States.Methods This was a randomised crossover simulation study. Fifty EMTs performed endotracheal intubation in randomised sequence following two different scenarios: normal airway and difficult airway.Results In normal airway scenario, overall success rate did not differ between the three devices. However AWS required a shorter run-time (14.1 [10.9-19.8] seconds) to complete ETI (TC) than ML (17.7 [13.5-21.3] seconds) (p=0.017). And both VLs showed a significant superiority over ML in time required to visualise vocal cords (TVC), percentage of glottic opening (POGO) score, and incidence of dental compression (IDC). In difficult airway scenario, overall success rate of both VLs was significantly higher than ML. The TCof AWS (13.7 [11.2-16.9] seconds) and GVL (20.7 [15.1-25.9] seconds) was shorter than that of ML (24.7 [18.1-34.5] seconds) (p<0.001). The TVCof GVL was significantly shorter than that of AWS and ML. The POGO score, IDC, and ease of intubation were significantly superior with AWS, GVL, and ML, respectively.Conclusions Video laryngoscopes can facilitate EMT performing a faster and easier intubation without interrupting chest compressions. Moreover, AWS improves the success rate comparing to ML in difficult airway management. (Hong Kong j.emerg.med. 2014;21:308-315)