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The specific effect of metronome guidance on the quality of one-person cardiopulmonary resuscitation and rescuer fatigue

Authors
 Tae Nyoung Chung  ;  Sun Wook Kim  ;  Je Sung You  ;  Young Soon Cho  ;  Sung Phil Chung  ;  Incheol Park  ;  Seung Ho Kim 
Citation
 JOURNAL OF EMERGENCY MEDICINE, Vol.43(6) : 1049-1054, 2012 
Journal Title
 JOURNAL OF EMERGENCY MEDICINE 
ISSN
 0736-4679 
Issue Date
2012
MeSH
Adult ; Cardiopulmonary Resuscitation/methods* ; Fatigue* ; Feedback* ; Female ; Humans ; Male ; Manikins ; Young Adult
Keywords
cardiopulmonary resuscitation ; feedback ; fatigue
Abstract
BACKGROUND: Metronome guidance is a simple and economic feedback method of guiding cardiopulmonary resuscitation (CPR). It has been proven for its usefulness in regulating the rate of chest compression and ventilation, but it is not yet clear how metronome use may affect compression depth or rescuer fatigue. STUDY OBJECTIVE: The aim of this study was to assess the specific effect that metronome guidance has on the quality of CPR and rescuer fatigue. METHODS: One-person CPRs were performed by senior medical students on Resusci Anne® manikins (Laerdal, Stavanger, Norway) with personal-computer skill-reporting systems. Half of the students performed CPR with metronome guidance and the other half without. CPR performance data, duration, and before-after trial differences in mean arterial pressure (MAP) and heart rate (HR) were compared between groups. RESULTS: Average compression depth (ACD) of the first five cycles, compression rate, no-flow fraction, and ventilation count were significantly lower in the metronome group (p=0.028, < 0.001, 0.001, and 0.041, respectively). Total CPR duration, total work (ACD × total compression count), and the before-after trial differences of the MAP and HR did not differ between the two groups. CONCLUSIONS: Metronome guidance is associated with lower chest compression depth of the first five cycles, while shortening the no-flow fraction and the ventilation count in a simulated one-person CPR model. Metronome guidance does not have an obvious effect of intensifying rescuer fatigue.
Full Text
http://www.sciencedirect.com/science/article/pii/S0736467912001084
DOI
22445676
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Emergency Medicine (응급의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sun Wook(김선욱)
Kim, Seung Ho(김승호)
Park, In Cheol(박인철) ORCID logo https://orcid.org/0000-0001-7033-766X
You, Je Sung(유제성) ORCID logo https://orcid.org/0000-0002-2074-6745
Chung, Sung Pil(정성필) ORCID logo https://orcid.org/0000-0002-3074-011X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/90777
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