Department of Emergency Medicine, Chung-Ang University College of Medicine, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
Eur J Pediatr. 2019 Jun;178(6):795-801. doi: 10.1007/s00431-019-03357-0. Epub 2019 Mar 8.
This study was conducted to investigate the effect of metronome guidance on the performance of infant cardiopulmonary resuscitation (CPR). A total of 36 medical doctors conducted a 2-min single rescuer CPR with the two-finger technique (TFT) or two-thumb encircling hands technique (TT) on an infant manikin without metronome guidance (baseline test). After completing the baseline test, the participants were assigned to either a "guidance group" or "non-guidance group." The guidance group performed CPR with a high-pitched sound at 110 beats/min from a metronome (test 2), while the non-guidance group performed 2-min CPR without metronome guidance (test 1). Comparison between the results of tests 1 and 2 showed that the ratio of adequate chest compression rate was significantly different in both the TFT (73% [34-93] vs. 98% [95-99], P < 0.001) and the TT (53% [32-79] vs. 99% [98-100], P = 0.010). Other parameters including average depth and the ratio of adequate depth were not significantly different between tests 1 and 2 in both the TFT and TT.Conclusion: Metronome guidance improves the adequacy of chest compression rate during infant CPR without affecting chest compression depth in both the TFT and TT.Trial registration: Clinical Research Information Service, KCT0002735 What is Known: • The rate of chest compressions can be optimized by the use of metronome guidance in pediatric cardiopulmonary resuscitation (CPR). • An adverse effect of deteriorating chest compression depth was found while using a metronome guidance during adult CPR simulations. What is New: • The metronome guidance improved the adequacy of the chest compression rate during infant CPR without affecting other parameters including average depth and the ratio of adequate depth in both the two-finger chest compression technique and two-thumb encircling hand technique.
这项研究旨在探讨节拍器指导对婴儿心肺复苏（CPR）表现的影响。共有 36 名医生在没有节拍器指导的情况下（基线测试），使用两指法（TFT）或双拇指环绕手技术（TT）对婴儿模型进行了 2 分钟的单人施救者 CPR。在完成基线测试后，参与者被分配到“指导组”或“非指导组”。指导组使用节拍器以 110 次/分钟的高音播放进行 CPR（测试 2），而非指导组在没有节拍器指导的情况下进行 2 分钟的 CPR（测试 1）。比较测试 1 和 2 的结果表明，在 TFT（73%[34-93]与 98%[95-99]，P<0.001）和 TT（53%[32-79]与 99%[98-100]，P=0.010）中，充分按压率的比例均有显著差异。在 TFT 和 TT 中，其他参数，包括平均深度和充分深度的比例，在测试 1 和 2 之间均无显著差异。结论：节拍器指导可提高婴儿 CPR 中按压频率的充分性，而不影响 TFT 和 TT 中的按压深度。试验注册：临床研究信息服务，KCT0002735 已知内容： • 在儿科心肺复苏（CPR）中使用节拍器指导可以优化按压频率。 • 在成人 CPR 模拟中使用节拍器指导时，发现按压深度会恶化。新内容： • 节拍器指导可提高婴儿 CPR 中按压频率的充分性，而不影响 TFT 和 TT 中的其他参数，包括平均深度和充分深度的比例。
