TSUNG-CHIEN LUChang, Yao TingYao TingChangHo, Te WeiTe WeiHoChen, YiYiChenLee, Yi TingYi TingLeeWang, Yu SiangYu SiangWangYEN-PIN CHENCHU-LIN TSAIMATTHEW HUEI-MING MACHENG-CHUNG FANGFEI-PEI LAIMeischke, Hendrika W.Hendrika W.Meischke2019-11-122019-11-122019-07-0103009572https://scholars.lib.ntu.edu.tw/handle/123456789/431103© 2019 Elsevier B.V. Aim: 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. Methods: 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 −1 ) 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. Results: Eighty participants were recruited. 40 people were assigned to the intervention and 40 to the control group. The compression rates (mean ± SD, min −1 ) 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). Conclusion: 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.enCardiac arrest | Cardiopulmonary resuscitation | Chest compression | Feedback device | Smartwatch | Wearable deviceCardiac arrest; Cardiopulmonary resuscitation; Chest compression; Feedback device; Smartwatch; Wearable device[SDGs]SDG3adult; Article; auditory feedback; clinical evaluation; controlled study; emergency nurse practitioner; emergency physician; emergency ward; female; health care delivery; health care personnel; health care quality; human; intervention study; male; mobile application; outcome assessment; priority journal; randomized controlled trial; registered nurse; resuscitation; simulation training; visual feedback; electronic device; feedback system; health care personnel; heart massage; manikin; mobile application; resuscitation; Adult; Cardiopulmonary Resuscitation; Feedback; Female; Health Personnel; Heart Massage; Humans; Male; Manikins; Mobile Applications; Wearable Electronic Devicesjournal article10.1016/j.resuscitation.2019.04.050310786502-s2.0-85065717251WOS:000472733000004https://api.elsevier.com/content/abstract/scopus_id/85065717251