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A higher chest compression rate may be necessary for metronome-guided cardiopulmonary resuscitation

Authors
 Tae Nyoung Chung  ;  Sun Wook Kim  ;  Je Sung You  ;  Young Soon Cho  ;  Sung Phil Chung  ;  Incheol Park 
Citation
 AMERICAN JOURNAL OF EMERGENCY MEDICINE, Vol.30(1) : 226-230, 2012 
Journal Title
 AMERICAN JOURNAL OF EMERGENCY MEDICINE 
ISSN
 0735-6757 
Issue Date
2012
MeSH
Cardiopulmonary Resuscitation/methods* ; Cross-Over Studies ; Heart Massage/methods* ; Humans ; Patient Simulation ; Time Factors
Keywords
Cardiopulmonary Resuscitation/methods* ; Cross-Over Studies ; Heart Massage/methods* ; Humans ; Patient Simulation ; Time Factors
Abstract
OBJECTIVES: Metronome guidance is a simple and economical feedback system for guiding cardiopulmonary resuscitation (CPR). However, a recent study showed that metronome guidance reduced the depth of chest compression. The results of previous studies suggest that a higher chest compression rate is associated with a better CPR outcome as compared with a lower chest compression rate, irrespective of metronome use. Based on this finding, we hypothesized that a lower chest compression rate promotes a reduction in chest compression depth in the recent study rather than metronome use itself. METHODS: One minute of chest compression-only CPR was performed following the metronome sound played at 1 of 4 different rates: 80, 100, 120, and 140 ticks/min. Average compression depths (ACDs) and duty cycles were compared using repeated measures analysis of variance, and the values in the absence and presence of metronome guidance were compared. RESULTS: Both the ACD and duty cycle increased when the metronome rate increased (P = .017, <.001). Average compression depths for the CPR procedures following the metronome rates of 80 and 100 ticks/min were significantly lower than those for the procedures without metronome guidance. CONCLUSIONS: The ACD and duty cyle for chest compression increase as the metronome rate increases during metronome-guided CPR. A higher rate of chest compression is necessary for metronome-guided CPR to prevent suboptimal quality of chest compression.
Full Text
http://www.sciencedirect.com/science/article/pii/S0735675710005681
DOI
21208766
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Emergency Medicine (응급의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sun Wook(김선욱)
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
Chung, Tae Nyoung(정태녕)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/89417
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