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J Korean Soc Emerg Med > Volume 19(6); 2008 > Article
Journal of The Korean Society of Emergency Medicine 2008;19(6): 617-626.
Comparison of the Quality of Chest Compressions between CPR Performed by a Single Trained Rescuer and Two Rescuer CPR Performed by a Trained Rescuer and an Untrained Rescuer in a Prolonged Out-of-Hospital CPR Scenario
Young Hoon Park, Kyung Woon Jeung, Young Hoe Hur, Byung Kook Lee, Hyun Ho Ryu, Jong Geun Yun, Geon Nam Kim, Tag Heo, Yong Il Min
1Department of Emergency Medicine, Chonnam National University Hospital, Korea. neoneti@hanmail.net
2Department of General Surgery, Hwasun Chonnam National University Hospital, Korea.
3Department of Emergency Medical Technican, Dongkang College, Korea.
ABSTRACT
PURPOSE:
The aim of this study is to compare the quality of chest compressions between cardiopulmonary resuscitation (CPR) performed by a single trained rescuer and two rescuer CPR performed by a trained rescuer and an untrained rescuer in a prolonged out-of-hospital CPR scenario.
METHODS:
For the phase I experiment, thirty-six emergency medical technician students (trained rescuers) were asked to perform 10 minutes of lone rescuer CPR on an instrumented manikin. For the phase II experiment, thirty-six volunteers with no previous CPR training (untrained rescuers) were recruited. Each untrained rescuer was randomly assigned to one trained rescuer. They were asked to perform 10 minutes of two rescuer CPR during the phase II experiment.
RESULTS:
During phase I, the percent of correct compressions diminished over time. The number of total compressions attempted for 10 minutes was increased significantly in phase II (786+/-50 versus 689+/-50 in phase I, p<0.01). However, the mean percentage of correct compressions for 10 minutes did not show a significant difference between phases (66+/-34% in phase I versus 64+/-22% in phase II). The duration of chest compression interruption was significantly reduced in phase II (3.0+/-0.4 versus 3.5+/-0.5 min in phase I, p<0.01).
CONCLUSION:
The quality of two rescuer CPR performed by a trained rescuer and an untrained rescuer was comparable to that of lone rescuer CPR performed by a single trained rescuer in a 10-min CPR scenario. When CPR goes on for a prolonged period, changing the person doing the chest compressions to an untrained rescuer may improve the quality of CPR.
Key words: Cardiopulmonary resuscitation, Fatigue, Education
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