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.
- Author:
Hyun Chul YEO
1
;
Hyun Jung LEE
;
Ji Ung NA
;
Dong Hyuk SHIN
;
Sang Kuk HAN
;
Pil Cho CHOI
;
Jeong Hun LEE
;
Jun Seok SEO
Author Information
1. Department of Emergency Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. pcmd.choi@samsung.com
- Publication Type:Randomized Controlled Trial ; Original Article
- Keywords:
Heart massage;
Respiration;
Artificial respiration;
Manikins
- MeSH:
Cardiopulmonary Resuscitation*;
Heart Massage;
Humans;
Manikins*;
Pilot Projects*;
Respiration;
Respiration, Artificial;
Students, Medical;
Thorax*;
Ventilation
- From:Journal of the Korean Society of Emergency Medicine
2015;26(6):557-562
- CountryRepublic of Korea
- Language:Korean
-
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). METHODS: 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.
