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Supraglottic Devices in Tactical Airway Management: A Comparison of the King Laryngeal Tracheal Device and the Combitube in Army Combat Medic Students |
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Abstract:
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Background: US Army Combat Medics are trained to provide the first medical treatment to wounded soldiers in a combat environment. Following graduation, they are candidates for possible immediate deployment and utilization in combat operations. Currently, the Combitube is the standard airway device taught throughout their training. The purpose of this study was to evaluate the success rate and speed in securing an airway on a manikin using the Combitube and the King Laryngeal Tracheal Device in U.S. Army Combat Medic Students during simulated battlefield conditions.
Methods: A prospective observational IRB approved study was performed with forty-eight U.S. Army Combat Medic Students. All students had initial didactic and hands-on training using both devices 16 weeks previously. Additionally, all students received their usual dedicated instruction on the Combitube 2 weeks previously which consisted of 2 hours of didactics followed by an 8-hour practical lab. The students were then randomized into two groups. Each student was evaluated as a sole healthcare provider in a tactical mass casualty scenario using three other students as subjects. The scenario required the medics to assess and treat the patients simultaneously while maintaining a tactical posture and reacting to simulated direct and indirect fire and protecting their patients. Battlefield sounds and moulage were also utilized. During the scenario one patient required a supraglottic airway device. Subjects were timed from recognition of an airway emergency to successful ventilation of the manikin. Secondary measurements included number of adjustments made, confidence of device use and basic demographic data.
Results: The success rate for securing an airway was 100% (24/24) for the King LT and 96% (23/24) for the Combitube. The mean time for success was 15 seconds (SD +/- 5.4 seconds) with the King LT and 32 seconds (SD +/- 6.9 seconds) with the Combitube. Using the Mann-Whitney Test there was a significant difference between devices (p < 0.001).
Conclusion: Combat medics had a high level of success in securing the airway of an intubation manikin under simulated battlefield conditions with either device. Despite previous training, the medics were more successful and faster with the King Laryngeal Tracheal Device. |
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Association:
Name: National Association of EMS Physicians URL: http://www.naemsp.org
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Citation:
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MLA Citation:
| Hill, Guyon., McManus, John., Schwartz, Richard., Ward, John. and Holcomb, John. "Supraglottic Devices in Tactical Airway Management: A Comparison of the King Laryngeal Tracheal Device and the Combitube in Army Combat Medic Students" Paper presented at the annual meeting of the National Association of EMS Physicians, Registry Resort, Naples, FL, <Not Available>. 2009-05-25 <http://www.allacademic.com/meta/p61916_index.html> |
APA Citation:
| Hill, G. , McManus, J. , Schwartz, R. , Ward, J. and Holcomb, J. "Supraglottic Devices in Tactical Airway Management: A Comparison of the King Laryngeal Tracheal Device and the Combitube in Army Combat Medic Students" Paper presented at the annual meeting of the National Association of EMS Physicians, Registry Resort, Naples, FL <Not Available>. 2009-05-25 from http://www.allacademic.com/meta/p61916_index.html |
Publication Type: Abstract Abstract: Background: US Army Combat Medics are trained to provide the first medical treatment to wounded soldiers in a combat environment. Following graduation, they are candidates for possible immediate deployment and utilization in combat operations. Currently, the Combitube is the standard airway device taught throughout their training. The purpose of this study was to evaluate the success rate and speed in securing an airway on a manikin using the Combitube and the King Laryngeal Tracheal Device in U.S. Army Combat Medic Students during simulated battlefield conditions.
Methods: A prospective observational IRB approved study was performed with forty-eight U.S. Army Combat Medic Students. All students had initial didactic and hands-on training using both devices 16 weeks previously. Additionally, all students received their usual dedicated instruction on the Combitube 2 weeks previously which consisted of 2 hours of didactics followed by an 8-hour practical lab. The students were then randomized into two groups. Each student was evaluated as a sole healthcare provider in a tactical mass casualty scenario using three other students as subjects. The scenario required the medics to assess and treat the patients simultaneously while maintaining a tactical posture and reacting to simulated direct and indirect fire and protecting their patients. Battlefield sounds and moulage were also utilized. During the scenario one patient required a supraglottic airway device. Subjects were timed from recognition of an airway emergency to successful ventilation of the manikin. Secondary measurements included number of adjustments made, confidence of device use and basic demographic data.
Results: The success rate for securing an airway was 100% (24/24) for the King LT and 96% (23/24) for the Combitube. The mean time for success was 15 seconds (SD +/- 5.4 seconds) with the King LT and 32 seconds (SD +/- 6.9 seconds) with the Combitube. Using the Mann-Whitney Test there was a significant difference between devices (p < 0.001).
Conclusion: Combat medics had a high level of success in securing the airway of an intubation manikin under simulated battlefield conditions with either device. Despite previous training, the medics were more successful and faster with the King Laryngeal Tracheal Device. |
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