Nicolau Abel, Bispo Ingrid, Lazarovici Marc, Ericsson Christoffer, Sa-Couto Pedro, Jorge Inês, Vieira-Marques Pedro, Sa-Couto Carla
CINTESIS@RISE, Faculty of Medicine, University of Porto (FMUP), Porto, Portugal.
CINTESIS@RISE, Community Medicine, Information and Decision Sciences Department (MEDCIDS), Faculty of Medicine, University of Porto (FMUP), Porto, Portugal.
Resusc Plus. 2024 Oct 29;20:100815. doi: 10.1016/j.resplu.2024.100815. eCollection 2024 Dec.
Success in resuscitation depends not only on the timeliness of the maneuvers but also on the quality of chest compressions. Factors such as the rescuer position and arm angle can significantly impact compression quality.
This study explores the influence of rescuer positioning and arm angle on the quality of chest compressions among healthcare professionals experienced in cardiopulmonary resuscitation.
In this international, multicentric, randomized crossover simulation trial with independent groups, healthcare professionals were assigned to one of four positions: kneeling on the floor, standing, standing on a step stool, and kneeling on the bed. Participants performed two 3-minute trials of uninterrupted chest compressions at arm angles of 90° and 105°. Compression quality was assessed, using manikin derived data.
A total of 76 participants entered the study. Those using a 90° arm angle exhibited higher compression scores than those at a 105° angle. Rescuers standing on a step stool maintained higher scores over time when compared to other groups. In contrast, rescuers kneeling on the bed consistently scored below 75% throughout the trial, with particularly low scores at the 105° angle.
Rescuer position and arm angle significantly influence CPR quality, with a 90° arm angle and elevated positioning optimizing compression depth and effectiveness. The results recommend against kneeling on the bed due to its negative impact on chest compression quality.
复苏的成功不仅取决于操作的及时性，还取决于胸外按压的质量。诸如施救者位置和手臂角度等因素会显著影响按压质量。
本研究探讨在心肺复苏方面经验丰富的医护人员的施救者位置和手臂角度对胸外按压质量的影响。
在这项具有独立组别的国际多中心随机交叉模拟试验中，医护人员被分配到四个位置之一：跪在地上、站立、站在脚凳上和跪在床边。参与者在90°和105°的手臂角度下进行了两次3分钟的不间断胸外按压试验。使用人体模型得出的数据评估按压质量。
共有76名参与者进入研究。使用90°手臂角度的参与者的按压得分高于105°角度的参与者。与其他组相比，站在脚凳上的施救者随着时间的推移保持了更高的分数。相比之下，跪在床边的施救者在整个试验过程中的得分始终低于75%，在105°角度时得分尤其低。
施救者位置和手臂角度显著影响心肺复苏质量，90°的手臂角度和较高的位置可优化按压深度和效果。结果表明不建议跪在床边，因为这会对胸外按压质量产生负面影响。
