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J Korean Soc Emerg Med > Volume 26(6); 2015 > Article
Journal of The Korean Society of Emergency Medicine 2015;26(6): 557-562.
2인 구조자 심폐소생술에서 인공호흡 횟수를 세는 것이 가슴압박 중단시간과 가슴압박분율에 미치는 영향: 마네킹 선행 연구
여현철1, 이현정1, 나지웅1, 신동혁1, 한상국1, 최필조1, 이정훈2, 서준석2
1성균관대학교 의과대학 강북삼성병원 응급의학과
2동국대학교 의과대학 일산병원 응급의학과
The Effect of Counting Numbers out for Giving Breaths on the Interrupting Time and Fraction of Chest Compressions in 2-rescuer Cardiopulmonary Resuscitation: A Manikin Pilot Study
Hyun Chul Yeo1, Hyun Jung Lee1, Ji Ung Na1, Dong Hyuk Shin1, Sang Kuk Han1, Pil Cho Choi1, Jeong Hun Lee2, Jun Seok Seo2
1Department of Emergency Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
2Department of Emergency Medicine, College of Medicine, Dongguk University, Goyang, Korea
Correspondence  Pil Cho Choi ,Tel: 02) 2001-2488, Fax: 02) 2001-2891, Email: pcmd.choi@samsung.com,
Received: August 24, 2015; Revised: August 25, 2015   Accepted: October 8, 2015.  Published online: December 30, 2015.
ABSTRACT
Purpose:
The aim of this study was to estimate the effect of counting numbers out for giving breaths on the interruption time (IT) of chest compressions (CCs) and chest compression fraction (CCF) in the 2-rescuer cardiopulmonary resuscitation (CPR).
Method:
Thirty medical students were enrolled in this randomized control simulation study, and were randomly divided into the control group and the study group. Both groups performed 2-rescuer CPR for 5-cycles with giving breaths using a bag-mask. Only participants in the study group were instructed to count numbers out for each breath verbally (“one, two”) at the end point of each inspiration period and immediately perform CCs at the point of counting “two”.
Results:
However, no differences in terms of depth, rate, incorrect location, and duty cycle of CCs, as well as ventilation volume of each breath, time to delivery of two breaths, and counts of breathing during 1 minute were observed between the two groups.
Conclusion:
The study group had significantly shorter IT and higher CCF compared with the control group. And no significant differences in the other measured parameters of CPR quality were observed between the two groups.
Key words: Heart massage, Respiration, Artificial respiration, Manikins
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