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Precise minute ventilation delivery using a bag-valve mask and audible feedback

Authors
 Jung Soo Lim  ;  Yong Chul Cho  ;  O Yu Kwon  ;  Sung Pil Chung  ;  Kwoen Yu  ;  Seung Whan Kim 
Citation
 AMERICAN JOURNAL OF EMERGENCY MEDICINE, Vol.30(7) : 1068-1071, 2012 
Journal Title
 AMERICAN JOURNAL OF EMERGENCY MEDICINE 
ISSN
 0735-6757 
Issue Date
2012
MeSH
Cardiopulmonary Resuscitation/instrumentation ; Cardiopulmonary Resuscitation/methods ; Clinical Alarms ; Female ; Heart Massage ; Humans ; Male ; Manikins ; Masks ; Respiration, Artificial/instrumentation ; Respiration, Artificial/methods*
Keywords
Cardiopulmonary Resuscitation/instrumentation ; Cardiopulmonary Resuscitation/methods ; Clinical Alarms ; Female ; Heart Massage ; Humans ; Male ; Manikins ; Masks ; Respiration, Artificial/instrumentation ; Respiration, Artificial/methods*
Abstract
OBJECTIVES: The efficacy of a modified bag-valve mask (BVM) with a ventilation rate alarm system was compared with conventional BVM to maximize adequate minute ventilation volume delivery in a manikin model. METHODS: After a 30-minute instructional session on how to use the 2 types of BVM, volunteers were randomly assigned to ventilate a manikin in a 2-minute arrest simulation using 2 different types of BVM. The manikin cardiopulmonary resuscitation was performed with a mechanical chest compression device, to which we added a rate alarm, which makes a ticking sound to indicate each second and buzzes every sixth second, to ensure a regular ventilation rate (10 breaths per minute). Fifty-two volunteers attempted to squeeze the classic BVM at a rate of 8 to 10 times per minute during 2-minute trial (volume marked BVM [VBVM]). After a 1-hour break, artificial ventilation was performed at a rate of 9 times per minute with the guidance of the rate alarm (rate and volume adjusted BVM [RVBVM]). RESULTS: There were no correlations between the data and the participants' physical characteristics or levels of training. In this study, the accuracy of minute ventilation between the 2 groups showed a significant difference (P < .001). The minute ventilation rate was constant in the RVBVM group, whereas in the VBVM group, the minute ventilation rate was irregular. CONCLUSION: In a manikin arrest model, the use of RVBVM results in a more constant and regular minute tidal ventilation rate than the use of VBVM and is, therefore, expected to produce more favorable outcomes in practical resuscitative situations.
Full Text
http://www.sciencedirect.com/science/article/pii/S0735675711003202
DOI
21908133
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Emergency Medicine (응급의학교실) > 1. Journal Papers
Yonsei Authors
Chung, Sung Pil(정성필) ORCID logo https://orcid.org/0000-0002-3074-011X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/89420
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