Department of Emergency MedicineSamsung Medical CenterSeoul06351Republic of Korea.
Interdisciplinary Program in BioengineeringSeoul National University Graduate SchoolSeoul03080Republic of Korea.
IEEE J Transl Eng Health Med. 2021 Jun 28;9:1800305. doi: 10.1109/JTEHM.2021.3093203. eCollection 2021.
We developed and validated a realistic simulation model for ultrasound-guided central venous catheter insertion in children that is easy to build and inexpensive and can automatically reproduce arterial and venous blood flow.
The simulation model was constructed with a chicken breast, two DWP-385 water pumps, two types of tubes and a controller. An elastic rubber tourniquet and a silicone tube were connected to each water pump, which generated different continuous flows mimicking those of the pediatric internal carotid artery and internal jugular vein, respectively. Both tubes were inserted into a piece of chicken breast and connected to the controller. Then, we provided a simulation program of ultrasound-guided central venous catheter insertion using our novel model to resident emergency medicine physicians. We also collected data on their knowledge and confidence levels regarding the procedure before and after the simulation via questionnaires utilizing a 5-point Likert scale.
The flow patterns of the artery and vein were well demonstrated with our model. A total of 11 resident physicians were enrolled. The knowledge and confidence regarding the discrimination of arteries and veins were significantly improved after training with our simulation model (p-value < 0.01). The subjective similarity and usefulness of our model also scored high on the questionnaire (median: 4; interquartile range in both categories: 4-5).
Our novel simulation model is useful and realistic for ultrasound-guided central venous catheter insertion training. Clinical impact: This controlled motor system can be applied to many simulation models of artery and vein circulation.
我们开发并验证了一种用于儿童超声引导下中心静脉置管的现实模拟模型，该模型易于构建且成本低廉，能够自动再现动脉和静脉血流。
模拟模型由鸡胸肉、两个 DWP-385 水泵、两种类型的管子和一个控制器组成。弹性止血带和硅酮管分别连接到每个水泵上，产生模拟小儿颈内动脉和颈内静脉的不同连续流动。两个管子插入鸡胸肉并连接到控制器上。然后，我们使用我们的新型模型为急诊住院医师提供了超声引导下中心静脉置管的模拟程序。我们还通过 5 分制 Likert 量表在模拟前后收集了他们关于该程序的知识和信心水平的数据。
我们的模型很好地展示了动脉和静脉的血流模式。共纳入 11 名住院医师。经过我们的模拟模型训练，他们对动脉和静脉的辨别知识和信心显著提高（p 值 < 0.01）。他们对我们模型的主观相似性和实用性也在问卷中获得了高分（中位数：4；两个类别中的四分位距均为 4-5）。
我们的新型模拟模型对于超声引导下中心静脉置管培训是有用且现实的。临床影响：这个控制电机系统可以应用于许多动脉和静脉循环模拟模型。
