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A Comparison of Compression Rates on the Quality of Cardiopulmonary Resuscitation
홍영훈,홍종근,이경렬,정한호,김정현,김용환,이준호,조광원,황성연 대한응급의학회 2013 大韓應急醫學會誌 Vol.24 No.2
Purpose: In cardiopulmonary resuscitation (CPR) there are different opinions on the compression rate that should be applied. The aim of this study was to compare the total number of adequate compressions delivered during a fiveminute period among four groups of lay persons (≥139min-1, 129-138, 114-128, and <114). Methods: This study represents a secondary data analysis from our previous research about the influence of age on fatigue during CPR. Participants were asked to perform chest compressions (without rescue breaths) at a rate of >100 times/minute and a depth of >5 cm for five minutes. A total of 86 participants were then divided into four groups based on their mean compression rate. Age, sex, and body mass index were analyzed as factors affecting the compression rates. Results: The group delivering a compression rate above 139 compressions min-1 performed better than those delivering below 114 compressions min-1 (p=0.03). There was no significant difference in the mean compression depth (p=0.13), percentage of incomplete chest recoil (p=0.277),or the percentage of incorrect hand positioning (p=0.091). All participants (except five) performed chest compressions at a rate above 100 compressions min-1. EDITOR: It may help to indicate whether age, sex, or body mass index (BMI)had an impact on compression rate. Conclusion: Our results suggest that a chest compression rate above 139 compressions min-1 does not deteriorate the quality of compressions compared to a lower chest compression rate (below 114 min-1) during a five-minute period. Most untrained lay people performed chest compressions well, within a range of 100~150 min-1.