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J Korean Soc Emerg Med > Volume 35(1); 2024 > Article
Journal of The Korean Society of Emergency Medicine 2024;35(1): 23-30.
메트로놈 도움 심폐소생술에서 메트로놈 설정속도에 따른 가슴압박 품질분석
채희진1 , 조준휘1,2 , 문중범1,2 , 신명철1,2 , 박윤수1 , 안웅찬1 , 옥택근1,2
1강원대학교병원 응급의학과
2강원대학교 의과대학 응급의학교실
Analysis of chest compression quality according to the metronome setting rate in metronome-assisted cardiopulmonary resuscitation
Hui Jin Chae1 , Jun Hwi Cho1,2 , Joong Bum Moon1,2 , Myeong Cheol Shin1,2 , Yoon Soo Park1 , Woong Chan Ahn1 , Taek Geun Ohk1,2
1Department of Emergency Medicine, Kangwon National University Hospital, Chuncheon, Korea
2Department of Emergency Medicine, Kangwon National University College of Medicine, Chuncheon, Korea
Correspondence  Taek Geun Ohk ,Tel: 033-258-2438, Fax: 033-258-2451, Email: otgotg11@gmail.com,
Received: May 10, 2023; Revised: October 15, 2023   Accepted: October 25, 2023.  Published online: February 28, 2024.
ABSTRACT
Objective:
The 2020 Cardiopulmonary Resuscitation (CPR) guidelines recommend the use of feedback devices during CPR training and do not limit their use in actual CPR. Although there have been various studies on metronome-assisted CPR that use a metronome as a feedback device, there are no research results to determine a specific metronome setting rate. We analyzed the quality of CPR and the effectiveness of the metronome feedback according to the metronome setting rate within the recommended chest compression rate range.
Method:
Fifty healthcare providers who had received CPR training or had performed CPR in the previous 2 years participated, and all of them performed CPR at three rates (100/min, 110/min, and 120/min). The CPR was performed for 2 minutes with only chest compressions. The smartphone metronome (Metronome version 13.0 Android, KHTSXR, Seoul, Korea) application was used for the rate setting, and Resusci Anne QCPR Mk II (Laerdal Medical, Stavanger, Norway) was used to measure the CPR quality. The difference in the CPR quality according to the setting rate was analyzed.
Results:
There was no significant difference in the “average compression depth (mm),” “adequate compression depth ratio (%),” and “adequate release ratio (%)” at the three set rates. The “adequate compression rate ratio (%)” was 98.48±5.27% at 110/min, which was higher than that at 120/min or 100/min, and this was a statistically significant difference (P=0.000). There was no significant difference in the “adequate compression site ratio (%).”
Conclusion:
When performing metronome-assisted CPR, setting the rate to 110/min can more appropriately maintain the recommended chest compression rate range and can result in high-quality CPR.
Key words: Cardiopulmonary resuscitation; Feedback device; Metronome
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