Hu Yinin, Brooks Kendall D, Kim Helen, Mahmutovic Adela, Choi Joanna, Le Ivy A, Kane Bartholomew J, McGahren Eugene D, Rasmussen Sara K
Department of Surgery, University of Virginia School of Medicine, P.O. Box 800709, Charlottesville, VA, 22908-0709, USA.
Department of Surgery, University of Virginia School of Medicine, P.O. Box 800709, Charlottesville, VA, 22908-0709, USA.
Am J Surg. 2016 Feb;211(2):377-83. doi: 10.1016/j.amjsurg.2015.08.030. Epub 2015 Oct 17.
Cumulative sum (Cusum) is a novel tool that can facilitate adaptive, individualized training curricula. The purpose of this study was to use Cusum to streamline simulation-based training.
Preclinical medical students were randomized to Cusum or control arms and practiced suturing, intubation, and central venous catheterization in simulation. Control participants practiced between 8 and 9 hours each. Cusum participants practiced until Cusum proficient in all tasks. Group comparisons of blinded post-test evaluations were performed using Wilcoxon rank sum.
Forty-eight participants completed the study. Average post-test composite score was 92.1% for Cusum and 93.5% for control (P = .71). Cusum participants practiced 19% fewer hours than control group participants (7.12 vs 8.75 hours, P < .001). Cusum detected proficiency relapses during practice among 7 (29%) participants for suturing and 10 (40%) for intubation.
In this comparison between adaptive and volume-based curricula in surgical training, Cusum promoted more efficient time utilization while maintaining excellent results.
累积和(Cusum)是一种新型工具,可促进适应性、个性化的培训课程。本研究的目的是使用Cusum简化基于模拟的培训。
将临床前医学生随机分为Cusum组或对照组,在模拟环境中练习缝合、插管和中心静脉置管。对照组参与者每人练习8至9小时。Cusum组参与者练习至在所有任务中达到Cusum熟练标准。使用Wilcoxon秩和检验对盲法后测评估进行组间比较。
48名参与者完成了研究。Cusum组的后测综合平均得分是92.1%,对照组是93.5%(P = 0.71)。Cusum组参与者的练习时间比对照组少19%(7.12小时对8.75小时,P < 0.001)。Cusum在练习过程中检测到7名(29%)参与者在缝合时熟练度出现退步,10名(40%)参与者在插管时熟练度出现退步。
在本次外科培训中适应性课程与基于练习量的课程的比较中,Cusum在保持优异结果的同时促进了更高效的时间利用。