医学生胸腔穿刺模拟训练学习曲线的研究

Objectiye The purpose of this study is to document the learning curve of simulation based thoracentesis training and to evaluate its long term outcome. Methods Forty-eight medical students were enrolled in this study. Each participant performed 5 supervised but unmentored thoracentesis on the simulator. Participant's performance was assessed by performance errors (PE), procedure time (PT) and participant's confidence (PC) by the supervisors for every operator on each test trial. Learning curves for each variable were generated. Long term outcomes of the training were measured by the re-test on half year later. Results An obvious improvement was noted in PE, PT and PC when comparing the subjects 1st and4th test trial (P ＜ 0.01 ). A plateau for PE, PT and PC in the learning curve occurred in 4th test trial. The results of re-test on half year later were similar with that in the test trial 5 (P ＞ 0.05). Conclusions This study demonstrated simulation based thoracentesis training can significantly improve the individual's skill.The full effect of learning from the modular can be achieved by four times of practices.

Analysis on the learning curves of simulation based thoracentesis training for medical students