Jung Jae Yun, Kwak Young Ho, Kim Do Kyun, Suh Dongbum, Chang Ikwan, Yoon Chiyul, Lee Jung Chan, Kim Hee Chan, Choi Jae Yeon, Ahn HeeJeong
Department of Emergency Medicine, Seoul National University Bundang Hospital, Seong-Nam, Korea.
Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea.
Emerg Med J. 2017 Mar;34(3):163-169. doi: 10.1136/emermed-2016-205817. Epub 2016 Sep 15.
We sought to validate the accuracy and assess the efficacy of a newly developed electronic weight estimation device (ie, the rolling tape) for paediatric weight estimation.
We enrolled a convenience sample of children aged <17 years presenting to our emergency department who volunteered to participate in the study. The children's heights and weights were measured, and three researchers estimated these values using the rolling tape and Broselow tape at 5 min intervals. The weight estimates of researcher 1, researcher 2 and the Broselow tape were compared with measured values, and mean percentage error (MPE), root mean square error (RMSE) and percentage of estimates within 10% of the actual measured values were calculated. For 30 randomly selected subjects, we compared the time interval from the start of the measurement to the time that orders for epinephrine, defibrillation dose and instrument size could be given in a simulated arrest scenario.
We enrolled 906 children (median age 4.0 years). For researcher 1, researcher 2 and the Broselow tape, MPE values were 0.11% (RMSE 2.61 kg), 1.41% (RMSE, 2.61 kg) and 1.72% (RMSE 5.41 kg), respectively, and the percentages of children with predictions within 10% of their actual weight were 75.1%, 75.7% and 60.6%, respectively. In the 30 simulated cases, the mean time for measurement to ordering was significantly shorter (25.8 s vs 35.5 s, p<0.001) for the rolling tape compared with the Broselow tape method.
The rolling tape is a good weight estimation tool for children compared with other methods. The rolling tape method significantly decreased the time from weight estimation to orders for essential drug dose, instrument size and defibrillation dose for resuscitation.
我们试图验证一种新开发的用于儿科体重估计的电子体重估计设备（即滚动卷尺）的准确性，并评估其有效性。
我们纳入了前来急诊科就诊的年龄小于17岁的儿童的便利样本，这些儿童自愿参与研究。测量了儿童的身高和体重，三名研究人员每隔5分钟使用滚动卷尺和布罗泽洛卷尺估计这些数值。将研究人员1、研究人员2和布罗泽洛卷尺的体重估计值与测量值进行比较，并计算平均百分比误差（MPE）、均方根误差（RMSE）以及估计值在实际测量值的10%以内的百分比。对于30名随机选择的受试者，我们比较了在模拟心脏骤停场景中从测量开始到可以给出肾上腺素、除颤剂量和器械尺寸医嘱的时间间隔。
我们纳入了906名儿童（中位年龄4.0岁）。对于研究人员1、研究人员2和布罗泽洛卷尺，MPE值分别为0.11%（RMSE 2.61千克）、1.41%（RMSE 2.61千克）和1.72%（RMSE 5.41千克），预测值在其实际体重的10%以内的儿童百分比分别为75.1%、75.7%和60.6%。在30个模拟案例中，与布罗泽洛卷尺方法相比，滚动卷尺从测量到下医嘱的平均时间显著更短（25.8秒对35.5秒，p<0.001）。
与其他方法相比，滚动卷尺是一种用于儿童的良好体重估计工具。滚动卷尺方法显著缩短了从体重估计到复苏所需基本药物剂量、器械尺寸和除颤剂量医嘱下达的时间。
