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KMID : 1140520170210030007
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Korean Journal of Emergency Medical Services
2017 Volume.21 No. 3 p.7 ~ p.16
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Which is the proper insertion method of laryngeal mask airway according to the rescuer’s position? : Comparison between index finger insertion and thumb insertion
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Chun Kyoung-Ha
Moon Jun-Dong
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Abstract
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Purpose: The purpose of the study was to investigate the effects of laryngeal mask airway (LMA) insertion from different positions, using different methods, on the quality of the insertion, for identifying a more convenient and effective insertion method.
Methods: In a model ambulance, 30 paramedic students performed the LMA insertion procedure, in four different settings, combinations of the rescuer’s position (at the head end of the patient, at the side of the patient), and insertion technique (index finger insertion, thumb insertion), in a randomized order. Quality of insertion index and convenience of use were measured.
Results: The quality of insertion index (tidal volume, gastric insufflation, airway pressure, airway sealing pressure, midline positions, insertion success grade, and insertion time) were not significantly different among four different settings. However LMA insertion from the anterior (head) end, using the index finger method compared to the thumb method was found to be significantly more convenient.
Conclusion: We recommend using the more convenient and familiar LMA insertion method, between index finger insertion and thumb insertion, regardless of rescuer’s position.
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KEYWORD
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Laryngeal mask airway, Index finger insertion, Thumb insertion, Quality of insertion, Rescuer’s position
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