Preuss Melanie, Röhrig Rainer, Hübel Christian, Vos Clara, Unterkofler Jenny, Brokmann Jörg Christian, Willmes Klaus, Plata Christopher
Center for Acute and Emergency Medicine, University Hospital, RWTH Aachen University, Pauwelsstrasse 30, 52074, Aachen, Germany.
Institute for Medical Informatics, University Hospital, RWTH Aachen University, Pauwelsstrasse 30, 52074, Aachen, Germany.
BMC Emerg Med. 2025 Jun 7;25(1):95. doi: 10.1186/s12873-025-01249-1.
Survival of in-hospital-cardiac-arrests is lower when they occur at night and at weekends than when they occur during the day. Despite numerous studies, there is little evidence regarding the cardiopulmonary resuscitation quality at night and the influence of a feedback device depending on time of day. The present study investigates the differences between chest compressions at night and during the day, with and without the use of a feedback device.
The study was approved by the local Ethics Committee and registered in the German Clinical Trials Register on 22nd of February 2022 (DRKS00027309) prior to inclusion of the first participant. 158 medical professionals were randomized into one of two groups: "no feedback" and "feedback"-group. In both groups, participants carried out three two-minute intervals of cardiopulmonary resuscitation on a manikin at day and at night. Members of the "feedback"-group received guidance by a feedback device. Primary endpoint was the mean compression depth at two time-intervals at the beginning (t = 30-60 s) and the end (t = 480-540 s) of the experience at night. Secondary endpoints included mean compression depth, adequate compression depth (%), compression rate and effective compressions (%).
At night, mean compression depth was significantly higher in the "feedback"-group at t (47.7 ± 7.9 mm, 95% CI [45.6-49.8] vs 42.9 ± 11.0 mm, 95% CI [40.8-45.0]) and t (46.2 ± 7.9 mm, 95% CI [44.0-48.4] vs 39.6 ± 11.6 mm, 95% CI [37.3-41.8]). There was no significant difference in mean compression depth between day and night in the "no feedback"-group (41.4 ± 10.8 mm, 95% CI [39.3-43.5] vs 42.2 ± 10.8 mm, 95% CI [40.1-44.3]) nor in the "feedback-group" (47.4 ± 7.6 mm, 95% CI [45.3-49.4] vs 47.4 ± 7.5 mm; 95% CI [45.4-49.5]).
The use of a real-time audiovisual feedback significantly improved compression depth during the day and night in a manikin-based simulation study with medical professionals.
院内心脏骤停在夜间和周末发生时的生存率低于白天发生时。尽管有大量研究，但关于夜间心肺复苏质量以及反馈设备根据一天中的时间所产生的影响，几乎没有证据。本研究调查了在使用和不使用反馈设备的情况下，夜间和白天胸部按压之间的差异。
该研究获得当地伦理委员会批准，并于2022年2月22日在德国临床试验注册中心注册（DRKS00027309），之后纳入第一名参与者。158名医学专业人员被随机分为两组之一：“无反馈”组和“反馈”组。在两组中，参与者在白天和夜间对模拟人进行三个两分钟的心肺复苏间隔。“反馈”组的成员通过反馈设备获得指导。主要终点是夜间体验开始时（t = 30 - 60秒）和结束时（t = 480 - 540秒）两个时间间隔的平均按压深度。次要终点包括平均按压深度、足够按压深度（%）、按压速率和有效按压（%）。
夜间，“反馈”组在t（47.7±7.9毫米，95%可信区间[45.6 - 49.8]与42.9±11.0毫米，95%可信区间[40.8 - 45.0]）和t（46.2±7.9毫米，95%可信区间[44.0 - 48.4]与39.6±11.6毫米，95%可信区间[37.3 - 41.8]）时的平均按压深度显著更高。“无反馈”组白天和夜间的平均按压深度无显著差异（41.4±10.8毫米，95%可信区间[39.3 - 43.5]与42.2±10.8毫米，95%可信区间[40.1 - 44.3]），“反馈”组也无显著差异（47.4±7.6毫米，95%可信区间[45.3 - 49.4]与47.4±7.5毫米；95%可信区间[45.4 - 49.
