Abstract 119: Only 10 Seconds of Rest Improves Your Chest Compression Quality in Hands-Only Cardiopulmonary Resuscitation
Introduction This research was designed to know changes in the CPR(cardiopulmonary resuscitation) quality and in recurs fatigue when recurs are provide a break at several ratios in continuous chest compression CPR(CCC-CPR).
Methods In this study, three different ways of CCC-CPR was performed each for 10mins; The first method is general CCC-CPR without a break(CCC); The second method is that there is 10 seconds break after 200 chest compressions(10/200); The third method is that there is 10 seconds break after 100 chest compressions(10/100). Total 63 trainees of emergency medical technician was recruited(November 2011 through February 2012) to participate in this study We counted the number of chest compressions in total and those with appropriate depth every 1 minute during 10 minutes and measured the mean compression depth from start of chest compression to 10 minutes.
Result The method that showed the deepest compression depth was the 10/100 method, next was the 10/200 method and last was CCC method. Until 4 minutes, there was no statistically difference among three methods. But after 5 minutes elapsed, the mean compression depth showed a statistically difference. The percentage of adequate compressions per minute was calculated as the proportion of chest compressions with appropriate depth among the total chest compressions. The percentage of adequate compression also declined over time in all method and after 5minutes elapsed, showed a statistically significant difference. The method that showed the highest percentage of adequate compression was the 10/100 method, next was the 10/200 method and last was CCC method. These results mean that 10-second break improve the quality of CPR to some extent.
Conclusion if rescuers are provided a rest at a constant ratio in CCC-CPR(example, after 100 chest compressions or 200 chest compression, 10 seconds-rest), mean chest compression depth and the percentage of adequate compression increased when compared with continuous chest compression without rest. Therefore, we propose that a rescuer is provided a rest at a constant ratio in CCC-CPR and especially we recommend 10-seconds rest after 100 chest compressions.
- © 2012 by American Heart Association, Inc.