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http://dx.doi.org/10.14408/KJEMS.2018.22.1.073

Comparison of ventilation effects by mask-sealing methods during bag-valve-mask ventilation  

Lee, Nam-Jong (Department of Paramedic Science, Korea National University of Transportation)
Baek, Mi-Lye (Department of Paramedic Science, Korea National University of Transportation)
Publication Information
The Korean Journal of Emergency Medical Services / v.22, no.1, 2018 , pp. 73-82 More about this Journal
Abstract
Purpose: The purpose of this study was to compare the tidal volumes and airway pressures of 3 mask-sealing methods (one hand C-E, two hands C-E, and one hand O-E) for ventilation treatment. Methods: The study subjects were 45 paramedic students. Tidal volume was measured for the three sealing methods by setting a ventilator, connecting it to the masks for 2 minutes, and using Respi-trainer software. Results: Regarding general characteristics, the group of men, in upper grades, and with practical training experience and experience and experience in the implementation of bag-valve-mask ventilation provided higher tidal volumes. Regarding physical characteristics, larger hands and greater grip strength correlated with higher tidal volume. Two hands C-E generated the highest tidal volume of $483.78{\pm}34.14mL$, one hand O-E generated $449.59{\pm}51.09mL$ and one hand C-E generated $394.31{\pm}68.95mL$. Conclusion: Means of tidal volumes were statistically significantly different based on mask sealing methods (p<.001). Two hand C-E was performed by the two-persons task and was suggested as the most effective method. For the one-person task, one hand O-E was the more effective method compared to the previous one hand C-E.
Keywords
Bag-valve-mask; Mask sealing; Ventilation; Tidal volume;
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