Jung Min Hee, Oh Je Hyeok, Kim Chan Woong, Kim Sung Eun, Lee Dong Hoon, Chang Wen Joen
Department of Emergency Medicine, Sungae Hospital, Seoul, Republic of Korea.
Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
Am J Emerg Med. 2015 Aug;33(8):993-7. doi: 10.1016/j.ajem.2015.04.016. Epub 2015 Apr 15.
We investigated whether visual feedback from an accelerometer device facilitated high-quality chest compressions during an in-hospital cardiac arrest simulation using a manikin.
Thirty health care providers participated in an in-hospital cardiac arrest simulation with 1 minute of continuous chest compressions. Chest compressions were performed on a manikin lying on a bed according to visual feedback from an accelerometer feedback device. The manikin and accelerometer recorded chest compression data simultaneously. The simulated patient was deemed to have survived when the chest compression data satisfied all of the preset high-quality chest compression criteria (depth ≥51 mm, rate >100 per minute, and ≥95% full recoil). Survival rates were calculated from the feedback device and manikin data.
The survival rate according to the feedback device data was 80%; however, the manikin data indicated a significantly lower survival rate (46.7%; P = .015). The difference between the accelerometer and manikin survival rates was not significant for participants with a body mass index greater than or equal to 20 kg/m(2) (93.3 vs 73.3%, respectively; P = .330); however, the difference in survival rate was significant in participants with body mass index less than 20 kg/m(2) (66.7 vs 20.0%, respectively; P = .025).
The use of accelerometer feedback devices to facilitate high-quality chest compression may not be appropriate for lightweight rescuers because of the potential for compression depth overestimation.
Clinical Research Information Service (KCT0001449).
我们研究了在使用人体模型进行的院内心脏骤停模拟中，加速度计设备的视觉反馈是否有助于进行高质量的胸外按压。
30名医护人员参与了一场院内心脏骤停模拟，进行1分钟的持续胸外按压。根据加速度计反馈设备的视觉反馈，在一张床上的人体模型上进行胸外按压。人体模型和加速度计同时记录胸外按压数据。当胸外按压数据满足所有预设的高质量胸外按压标准（深度≥51毫米、速率>每分钟100次、完全回弹≥95%）时，模拟患者被判定为存活。根据反馈设备和人体模型数据计算存活率。
根据反馈设备数据得出的存活率为80%；然而，人体模型数据显示存活率显著较低（46.7%；P = 0.015）。对于体重指数大于或等于20千克/平方米的参与者，加速度计和人体模型的存活率差异不显著（分别为93.3%和73.3%；P = 0.330）；然而，体重指数小于20千克/平方米的参与者的存活率差异显著（分别为66.7%和20.0%；P = 0.025）。
由于存在按压深度高估的可能性，使用加速度计反馈设备来促进高质量胸外按压可能不适用于体重较轻的救援人员。
临床研究信息服务（KCT0001449）。
