Dept. of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan; Dept. of Biomedical Informatics and Medical Education, University of Washington, Seattle, USA.
Dept. of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan.
Resuscitation. 2019 Jul;140:16-22. doi: 10.1016/j.resuscitation.2019.04.050. Epub 2019 May 9.
Cardiopulmonary resuscitation (CPR) quality affects survival after cardiac arrest. We aimed to investigate if a smartwatch with real-time feedback can improve CPR quality by healthcare professionals.
An app providing real-time audiovisual feedback was developed for a smartwatch. Emergency Department (ED) professionals were recruited and randomly allocated to either the intervention group wearing a smartwatch with the preinstalled app, or to a control group. All participants were asked to perform a two-minute CPR on a manikin at a 30:2 compression-ventilation ratio. Primary outcomes were the mean CCR and CCD measured on the manikin. A secondary outcome was the percentage of chest compressions meeting both the guideline-recommended rate (100-120 min) and depth (50-60 mm) of high-quality CPR during a 2-min period. Differences between groups were evaluated with t-test, Chi-Square test, or Mann-Whitney U test depending on the distribution.
Eighty participants were recruited. 40 people were assigned to the intervention and 40 to the control group. The compression rates (mean ± SD, min) were significantly faster (but above the guideline recommendation, P < 0.001) in the control (129.1 ± 14.9) than in the intervention group (112.0 ± 3.5). The compression depths (mean ± SD, mm) were significantly deeper (P < 0.001) in the intervention (50.9 ± 6.6) than in the control group (39.0 ± 8.7). The percentage (%) of high-quality CPR was significantly higher (P < 0.001) in the intervention (median 39.4, IQR 27.1-50.1) than in the control group (median 0.0, IQR 0.0-0.0).
Without real-time feedback, chest compressions tend to be too fast and too shallow. CPR quality can be improved with the assistance of a smartwatch providing real-time feedback.
心肺复苏（CPR）质量影响心脏骤停后的生存。我们旨在研究通过使用带有实时反馈的智能手表是否可以提高医疗保健专业人员的 CPR 质量。
为智能手表开发了一个提供实时视听反馈的应用程序。招募了急诊室（ED）专业人员，并将其随机分配到干预组（佩戴预装有该应用程序的智能手表）或对照组。所有参与者均被要求在模型上以 30:2 的按压-通气比进行两分钟的 CPR。主要结局是在模型上测量的平均 CCR 和 CCD。次要结局是在两分钟内满足高质量 CPR 指南推荐的频率（100-120 次/分钟）和深度（50-60 毫米）的胸外按压百分比。根据分布情况，使用 t 检验、卡方检验或曼-惠特尼 U 检验评估组间差异。
共招募了 80 名参与者。40 人被分配到干预组，40 人被分配到对照组。对照组的按压频率（均值±标准差，分钟）明显更快（但高于指南建议，P<0.001）（129.1±14.9），而干预组（112.0±3.5）则较慢。干预组的按压深度（均值±标准差，毫米）明显更深（P<0.001）（50.9±6.6），而对照组（39.0±8.7）则较浅。高质量 CPR 的百分比（%）明显更高（P<0.001）干预组（中位数 39.4，IQR 27.1-50.1）高于对照组（中位数 0.0，IQR 0.0-0.0）。
没有实时反馈，胸外按压往往会太快太浅。使用提供实时反馈的智能手表可以提高 CPR 质量。
