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KMID : 0385920170280020159
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Journal of the Korean Society of Emergency Medicine
2017 Volume.28 No. 2 p.159 ~ p.166
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A Simulation Study for Evaluating the Efficacy of Live-feedback Device (Amflow) for Delivering Correct Ventilations During Cardiopulmonary Resuscitation
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Park Sang-O
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Abstract
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Purpose: The delivery of optimal respiration rate (RR) and tidal volume (TV) is a challenging issue during cardiopulmonary resuscitation (CPR). Amflow is a newly designed feedback device to optimize ventilation. The aim of study is to verify the efficacy of this device for delivering the correct RR and TV during simulated CPR.
Method: This prospective, random cross-over designed study included a total of 40 participants who were trained for ventilation method. Using the self-inflating bags with Amflow and without Amflow, participants delivered 5-min of ventilations to test the lungs connected to gas flow analyzers. The correct RR and TV were defined as 10 breaths/min and 500-600 mL, respectively.
Results: For RRs during CPR, the Amflow group showed significantly higher proportions of delivering the correct RR (99.0%, 198/200) than the control group (ventilation without Amflow) (12.0%, 24/200) (p<0001). For TVs, the mean TVs were higher in the control group (535.4±87.9) than in the Amflow group (505.4±39.1) (p<0.001). Proportions of delivering the correct TVs were higher in the Amflow group (56.9%, 1,137/1,999) than in the control group (46.4%, 929/2,003) (p<0.001).
Conclusion: Amflow could be useful in delivering the correct RR and TV for ventilations using bag-mask bags during CPR.
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KEYWORD
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Cardiopulmonary resuscitation, Ventilation, Tidal volume, Ventilator, Feedback
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