Hishikawa Shuji, Kawano Masaki, Tanaka Hozumi, Konno Kenjiro, Yasuda Yoshikazu, Kawano Ryutaro, Kobayashi Eiji, Lefor Alan T
Medical Simulation Center, Jichi Medical University, Tochigi, Japan.
Am Surg. 2010 Jan;76(1):73-8.
This study was undertaken to determine the educational benefits of mannequin simulation for performance of tube thoracostomy in a porcine model by medical students. Thirty medical students were randomized into two groups; the first performed tube thoracostomy on a mannequin simulator and then a porcine model; the second used only the porcine model. Performance measures included completion of subtasks, time to perform the procedure, a global score assigned by faculty raters, and a self-evaluation survey. Subtask completion rate was similar in both groups (P > 0.05). Mean time to perform the procedure was 9.8 minutes (+/- 0.9, simulator), and 9.3 minutes (+/- 1.0, nonsimulator, P > 0.05). Global scores were 12.3 (+/- 1.3, simulator) and 11.0 (+/- 1.4, non-simulator, P > 0.05). Self-evaluation of confidence (1 = "very", 7 = "not at all") showed the simulator group was significantly more confident (3.4 +/- 0.42) than the nonsimulator group (4.7 +/- 0.49, P < 0.05). All students met basic competencies to perform tube thoracostomy. The simulator group felt significantly more confident to subsequently perform the procedure on a patient, whereas performance was not statistically significantly different for the two groups. Further trials may be needed to delineate the optimal role for these simulators in teaching tube thoracostomy.
本研究旨在确定人体模型模拟对医学生在猪模型上进行胸腔闭式引流术的教育益处。30名医学生被随机分为两组；第一组在人体模型模拟器上进行胸腔闭式引流术，然后在猪模型上进行；第二组仅使用猪模型。绩效指标包括子任务的完成情况、操作时间、教师评分员给出的综合评分以及自我评估调查。两组的子任务完成率相似（P>0.05）。操作的平均时间在模拟器组为9.8分钟（±0.9），在非模拟器组为9.3分钟（±1.0，P>0.05）。综合评分在模拟器组为12.3（±1.3），在非模拟器组为11.0（±1.4，P>0.05）。自信程度的自我评估（1=“非常”，7=“完全不”）显示，模拟器组（3.4±0.42）比非模拟器组（4.7±0.49）明显更有信心（P<0.05）。所有学生均达到了进行胸腔闭式引流术的基本能力。模拟器组对随后为患者进行该操作明显更有信心，而两组的操作表现无统计学显著差异。可能需要进一步试验来明确这些模拟器在胸腔闭式引流术教学中的最佳作用。
