Wee Jeremy C P, Nandakumar Mooppil, Chan Yiong Huak, Yeo Rowena S L, Kaur Kaldip, Anantharaman V, Yap Susan, Ong Marcus E H
Department of Emergency Medicine, Singapore General Hospital, Singapore.
Ann Acad Med Singap. 2014 Jan;43(1):33-8.
The aim of the study is to investigate the effect of using Automated External Defibrillator (AED) audiovisual feedback on the quality of cardiopulmonary resuscitation (CPR) in a manikin training setting.
Five cycles of 30 chest compressions were performed on a manikin without CPR prompts. After an interval of at least 5 minutes, the participants performed another 5 cycles with the use of real time audiovisual feedback via the ZOLL E-Series defibrillator. Performance data were obtained and analysed.
A total of 209 dialysis centre staff participated in the study. Using a feedback system resulted in a statistically significant improvement from 39.57% to 46.94% (P=0.009) of the participants being within the target compression depth of 4 cm to 5 cm and a reduction in those below target from 16.45% to 11.05% (P=0.004). The use of feedback also produced a significant improvement in achieving the target for rate of chest compression (90 to 110 compressions per minute) from 41.27% to 53.49%; (P<0.001). The mean depth of chest compressions was 4.85 cm (SD=0.79) without audiovisual feedback and 4.91 (SD=0.69) with feedback. For rate of chest compressions, it was 104.89 (SD=13.74) vs 101.65 (SD=10.21) respectively. The mean depth of chest compression was less in males than in females (4.61 cm vs 4.93 cm, P=0.011), and this trend was reversed with the use of feedback.
In conclusion, the use of feedback devices helps to improve the quality of CPR during training. However more studies involving cardiac arrest patients requiring CPR need to be done to determine if these devices improve survival.
本研究的目的是在模拟人训练环境中，调查使用自动体外除颤器（AED）视听反馈对心肺复苏（CPR）质量的影响。
在没有心肺复苏提示的情况下，对模拟人进行5个周期、每个周期30次胸外按压。间隔至少5分钟后，参与者通过ZOLL E系列除颤器使用实时视听反馈再进行5个周期的操作。获取并分析性能数据。
共有209名透析中心工作人员参与了该研究。使用反馈系统后，按压深度在4厘米至5厘米目标范围内的参与者比例从39.57%显著提高到46.94%（P = 0.009），低于目标深度的参与者比例从16.45%降至11.05%（P = 0.004）。使用反馈在实现胸外按压速率目标（每分钟90至110次按压）方面也有显著改善，从41.27%提高到53.49%；（P < 0.001）。没有视听反馈时胸外按压的平均深度为4.85厘米（标准差 = 0.79），有反馈时为4.91厘米（标准差 = 0.69）。对于胸外按压速率，分别为104.89（标准差 = 13.74）和101.65（标准差 = 10.21）。男性胸外按压的平均深度小于女性（4.61厘米对4.93厘米，P = 0.011），使用反馈后这种趋势发生了逆转。
总之，在训练期间使用反馈设备有助于提高心肺复苏的质量。然而，需要进行更多涉及需要心肺复苏的心脏骤停患者的研究，以确定这些设备是否能提高生存率。
