Cheng Adam, Overly Frank, Kessler David, Nadkarni Vinay M, Lin Yiqun, Doan Quynh, Duff Jonathan P, Tofil Nancy M, Bhanji Farhan, Adler Mark, Charnovich Alex, Hunt Elizabeth A, Brown Linda L
University of Calgary, KidSim-ASPIRE Research Program, Division of Emergency Medicine, Department of Pediatrics, Alberta Children's Hospital, 2888 Shaganappi Trail NW, Calgary, Alberta, Canada T3B 6A8.
Hasbro Children's Hospital, Alpert Medical School of Brown University, 593 Eddy St, Providence, RI 02903, USA.
Resuscitation. 2015 Feb;87:44-50. doi: 10.1016/j.resuscitation.2014.11.015. Epub 2014 Nov 26.
Many healthcare providers rely on visual perception to guide cardiopulmonary resuscitation (CPR), but little is known about the accuracy of provider perceptions of CPR quality. We aimed to describe the difference between perceived versus measured CPR quality, and to determine the impact of provider role, real-time visual CPR feedback and Just-in-Time (JIT) CPR training on provider perceptions.
We conducted secondary analyses of data collected from a prospective, multicenter, randomized trial of 324 healthcare providers who participated in a simulated cardiac arrest scenario between July 2012 and April 2014. Participants were randomized to one of four permutations of: JIT CPR training and real-time visual CPR feedback. We calculated the difference between perceived and measured quality of CPR and reported the proportion of subjects accurately estimating the quality of CPR within each study arm.
Participants overestimated achieving adequate chest compression depth (mean difference range: 16.1-60.6%) and rate (range: 0.2-51%), and underestimated chest compression fraction (0.2-2.9%) across all arms. Compared to no intervention, the use of real-time feedback and JIT CPR training (alone or in combination) improved perception of depth (p<0.001). Accurate estimation of CPR quality was poor for chest compression depth (0-13%), rate (5-46%) and chest compression fraction (60-63%). Perception of depth is more accurate in CPR providers versus team leaders (27.8% vs. 7.4%; p=0.043) when using real-time feedback.
Healthcare providers' visual perception of CPR quality is poor. Perceptions of CPR depth are improved by using real-time visual feedback and with prior JIT CPR training.
许多医疗保健提供者依靠视觉感知来指导心肺复苏(CPR),但对于提供者对CPR质量感知的准确性知之甚少。我们旨在描述感知到的与测量得到的CPR质量之间的差异,并确定提供者角色、实时视觉CPR反馈和即时(JIT)CPR培训对提供者感知的影响。
我们对从一项前瞻性、多中心、随机试验收集的数据进行了二次分析,该试验有324名医疗保健提供者参与,他们在2012年7月至2014年4月期间参与了模拟心脏骤停场景。参与者被随机分配到以下四种组合之一:JIT CPR培训和实时视觉CPR反馈。我们计算了感知到的与测量得到的CPR质量之间的差异,并报告了每个研究组中准确估计CPR质量的受试者比例。
在所有组中,参与者高估了达到足够胸外按压深度(平均差异范围:16.1 - 60.6%)和速率(范围:0.2 - 51%),而低估了胸外按压分数(0.2 - 2.9%)。与无干预相比,使用实时反馈和JIT CPR培训(单独或联合使用)改善了对深度的感知(p<0.001)。对于胸外按压深度(0 - 13%)、速率(5 - 46%)和胸外按压分数(60 - 63%),CPR质量的准确估计较差。在使用实时反馈时,CPR提供者对深度的感知比团队领导者更准确(27.8%对7.4%;p = 0.043)。
医疗保健提供者对CPR质量的视觉感知较差。使用实时视觉反馈和先前的JIT CPR培训可改善对CPR深度的感知。