超声引导下的区域麻醉模拟及学员表现

Imanuel R. Lerman MD, MS , Dmitri Souzdalnitski MD, PhD , Thomas Halaszynski DMD, MD, MBA , Feng Dai PhD , Maged Guirguis MD , Samer N. Narouze MD, PhD, FIPP
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引用次数: 2

摘要

本研究的目的是用一种新型的高保真反馈模拟器装置测量和记录受训者在超声引导股神经阻滞(FNB)中的表现。该方法描述了一种新型的幻影模拟器,能够客观地记录受训者的表现,并在成功完成FNB时提供视觉和音频反馈。总共有33名由医学生和住院医生组成的受试者进行了2次独立的超声模拟,并被分为3组:发光二极管和压电蜂鸣器反馈(LED和PBZ),单独语音反馈或无反馈。这个模拟器测量了2个独立的性能参数,包括;进行FNB的时间(以秒为单位)和针的次数。然后用全球评分量表对每位受训者进行评估。同时记录受训者对超声引导手术的信心。所有学员在模拟分组时间内的表现都有所提高(p <0.005),并对超声引导手术获得了显著的信心(p <0.0005)。LED和PBZ组在块时间性能上的改善最大(p <0.0001)。只有LED组和PBZ组在模拟神经显像和推进针方面有改善(p <0.05),并同时可视化针到达模拟神经目标(p <0.005)。所有组均存在显著相关(- 0.72,p <0.0001),在成功的FNB过程中,执行FNB的时间和针的正确可视化之间。本研究中使用的高保真超声假体模拟器记录并提高了新手在超声引导过程中的表现和信心。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultrasound-guided regional anesthesia simulation and trainee performance

The objective of this study was to measureand record trainee performance during an ultrasound-guided femoral nerve block (FNB) with a novel high fidelity feedback based simulator device. The method decribes a novel phantom simulator that was built, capable of objectively recording trainee performance and providing visual and audio feedback on the completion of a successful FNB. Overall, 33 subjects were comprised of medical students and residents performed 2 separate ultrasound simulation sessions, and were placed in 1 of 3 groups: light emitting diode and piezoelectric buzzer feedback (LED and PBZ), voice feedback alone, or no feedback. This phantom simulator measured 2 separate performance parameters including; the time (in seconds) to carry out a FNB and the number of needle passes. Each trainee was then evaluated with a global rating scale. Trainee confidence in ultrasound-guided procedures was also recorded.

All trainees improved their performance in the simulated block time (p < 0.005) and gained significant confidence in ultrasound-guided procedures (p < 0.0005). The LED and PBZ group improved the most in block time performance (p < 0.0001). Only the LED and PBZ group improved in visualizing the simulated nerve and advancing needle (p < 0.05), as well as simultaneously visualizing the needle reach the simulated nerve target (p < 0.005). For all groups there was robust correlation (−0.72, p < 0.0001) between the time to carry out a FNB and correct visualization of the needle during a successful FNB.

The high fidelity ultrasound phantom simulator used in this study, recorded and improved performance, and confidence in ultrasound guided procedures carried out by novice trainees.

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