Sawee Chinnawudh, Churuangsuk Chaitong, Vattanavanit Veerapong
Division of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand, Email:
Clinical Nutrition Unit, Division of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand, Email:
Arch Acad Emerg Med. 2025 Jun 25;13(1):e58. doi: 10.22037/aaemj.v13i1.2704. eCollection 2025.
Reducing the compression rotation interval from 2 to 1 minute is expected to improve cardiopulmonary resuscitation (CPR) quality. This meta-analysis aimed to assess the effect of altering the compression rotation interval on key CPR quality parameters, including compression depth, rate, and rescuer fatigue.
We systematically searched MEDLINE, EMBASE, Scopus, Google Scholar, Web of Science, and the Cochrane Controlled Register of Trials from their inception to May 15, 2025. We searched for randomized controlled trials, simulation studies, and crossover studies that compared 1-min and 2-min compression rotation times. The assessed outcomes included compression depth, rate, correctness, and rescuer fatigue, which were reported as the standard mean difference (SMD) with a 95% confidence interval (95% CI).
One randomized controlled trial and seven randomized crossover studies, involving 668 rescuers in total, using manikins, were included. The 1-min rotation group exhibited significantly greater compression depth, with an increase of 2.06 mm (SMD = 2.06, 95% CI: 0.44-3.68, < 0.001). This group demonstrated lower levels of fatigue, as indicated by a significant reduction on the visual analog scale for fatigue (SMD = -1.27, 95% CI: -2.24 to -0.30, < 0.001). However, there were no significant differences in the compression rate or percentage of compressions that achieved adequate depth.
It seems that altering the chest compression rotation interval from 2 min to 1 min improves the compression depth and reduces rescuer fatigue. However, parameters, such as the compression rate and compression adequacy, remained unchanged. Notably, all the studies were conducted on manikins, thus necessitating further research to assess the applicability of these changes in real-world clinical settings.
将按压轮换间隔从2分钟缩短至1分钟有望提高心肺复苏（CPR）质量。本荟萃分析旨在评估改变按压轮换间隔对CPR关键质量参数的影响，包括按压深度、频率和施救者疲劳程度。
我们系统检索了MEDLINE、EMBASE、Scopus、谷歌学术、科学网以及考克兰对照试验注册库，检索时间范围从各数据库建库至2025年5月15日。我们检索了比较1分钟和2分钟按压轮换时间的随机对照试验、模拟研究和交叉研究。评估的结果包括按压深度、频率、正确性和施救者疲劳程度，以标准平均差（SMD）及95%置信区间（95%CI）报告。
纳入了1项随机对照试验和7项随机交叉研究，共涉及668名使用人体模型的施救者。1分钟轮换组的按压深度显著更大，增加了2.06毫米（SMD = 2.06，95%CI：0.44 - 3.68，P < 0.001）。该组的疲劳程度较低，这体现在疲劳视觉模拟量表上有显著降低（SMD = -1.27，95%CI：-2.24至-0.30，P < 0.001）。然而，按压频率或达到足够深度的按压百分比没有显著差异。
将胸部按压轮换间隔从2分钟改为1分钟似乎能提高按压深度并减轻施救者疲劳。然而，诸如按压频率和按压充分性等参数保持不变。值得注意的是，所有研究均在人体模型上进行，因此需要进一步研究以评估这些改变在实际临床环境中的适用性。
