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J Korean Soc Emerg Med > Volume 21(6); 2010 > Article
Journal of The Korean Society of Emergency Medicine 2010;21(6): 776-782.
Comparative Study of Prehospital Airway Devices Tested Using a Manikin Model: A Comparison of the Laryngeal Mask Airway Classic (LMA Classict(TM)), Cobra Perilaryngeal Airway (Cobra PLA(TM)) and the King Laryngeal Tube (King LT(TM))
Yue Lah Kim, Hyoung Youn Lee, Gi Woon Kim, Heui Sug Jo, Jin Hee Jung
1Department of Emergency Medicine, Ewha Womans University School of Medicine, Korea.
2Daejeon Armed Forces Hospital, Korea.
3Department of Emergency Medicine, Ajou University School of Medicine, Korea.
4Department of Health Policy and Management, School of Medicine, Kangwon National University, Korea.
5Department of Preventive Medicine, College of Medicine, Kangwon National University Hospital, Korea. 77saja@hanmail.net
6Society for Clinical Procedures and Education, Korea.
Prehospital airway management is crucial to emergency healthcare providers, especially for emergency medical technicians (EMTs). In spite of its clinical importance, adequate airway management cannot be guaranteed only with the use of endotracheal intubation. Many supraglottic airway devices have been introduced as substitutes for endotracheal intubation. We compared 3 such devices - LMA Classic(TM), Cobra PLA(TM) and King LT(TM) - using a manikin and recorded performance skill and preference.
Thirty EMTs participated in the airway management educational program and were enrolled in this study which was held in the Gyeong-Gi Fire Academy. We surveyed the participants general characteristics and experience by e-mail prior to this laboratory study of their skills. The airway management program consisted of a 10 minute lecture followed by 20 minutes of skill training. We observed the success rate, preference among the 3 devices, and the total procedure time of airway device insertion in different rooms.
The LMA Classic(TM), Cobra PLA(TM) and King LT(TM) groups succeeded 90%, 76.7%, and 80%, respectively at the first trial. There was no statistically significant difference among the groups (p=0.372). To achieve adequate airway management, the groups spent 28.6+/-7.2, 24.7+/-4.9, and 26.9+/-7.0 seconds, respectively, again with no significant differences (p=0.108). A preference survey performed after the test showed the highest preference for King LT(TM), 57%.
Three prehospital supraglottic airway devices showed no differences in success rate or procedure time. Despite this result, King LT(TM) was the most preferred.
Key words: Prehosp ital emergency care, Emergency medical technicians, Laryngeal masks
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