Corvetto M A, Pedemonte J C, Varas D, Fuentes C, Altermatt F R
Department of Anesthesiology, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile.
Acta Anaesthesiol Scand. 2017 Oct;61(9):1184-1191. doi: 10.1111/aas.12937. Epub 2017 Jul 6.
Current evidence supports the utility of simulation training for bedside procedures such as ultrasound-guided jugular central venous catheter (CVC) insertion. However, a standardized methodology to teach procedural skills has not been determined yet. The aim of this study was to evaluate the effectiveness of a simulation-based training program for improving novice technical performance during ultrasound-guided internal jugular CVC placement.
Postgraduate year 1 (PGY-1) residents from anesthesiology, emergency medicine, cardiology, ICU, and nephrology specialties were trained in four deliberate practice sessions. Learning objectives included principles of ultrasound (US), preparation (gown, glove, draping), procedural skills I (US scanning and puncture), and procedural skills II (catheter insertion). CVC technical proficiency was tested pre- and post-training using hand-motion analysis with the Imperial College Surgical Assessment Device (ICSAD) and a global rating scale (GRS).
Thirty-five PGY-1 residents successfully completed the program. These novices' GRS scores improved significantly after the training (P < 0.001). Total path length measured with the ICSAD decreased significantly after the training (P = 0.008). Procedural time decreased significantly after training from 387 (310-501) seconds to 200 (157-261) seconds (median and interquartile range) (P = 0.029).
This simulation-training program based on deliberate practice significantly increased the technical skills of residents in US-guided short-axis, out-of-plane internal jugular CVC placement. Data also confirm the validity of the ICSAD as an assessment tool for ultrasound-guided internal jugular CVC placement learning.
目前的证据支持模拟训练在床边操作中的实用性,如超声引导下颈内静脉中心静脉导管(CVC)置入。然而,尚未确定一种标准化的程序技能教学方法。本研究的目的是评估基于模拟的训练计划在提高超声引导下颈内静脉CVC置入过程中新手技术表现方面的有效性。
来自麻醉学、急诊医学、心脏病学、重症监护病房和肾脏病学专业的一年级住院医师(PGY-1)接受了四次刻意练习课程的培训。学习目标包括超声(US)原理、准备工作(穿手术衣、戴手套、铺巾)、操作技能I(超声扫描和穿刺)以及操作技能II(导管置入)。使用帝国理工学院外科评估设备(ICSAD)通过手部动作分析和整体评分量表(GRS)在训练前后对CVC技术熟练程度进行测试。
35名PGY-1住院医师成功完成了该计划。这些新手的GRS评分在训练后显著提高(P < 0.001)。训练后,用ICSAD测量的总路径长度显著缩短(P = 0.008)。训练后操作时间从387(310 - 501)秒显著缩短至200(157 - 261)秒(中位数和四分位间距)(P = 0.029)。
这种基于刻意练习的模拟训练计划显著提高了住院医师在超声引导下短轴、平面外颈内静脉CVC置入的技术技能。数据还证实了ICSAD作为超声引导下颈内静脉CVC置入学习评估工具的有效性。