Objective: The primary goal of this study was to determine whether exposure to endovascular simulator training increases interest in vascular surgery among medical students. Secondary goals were to determine whether interest in vascular surgery is inversely related to the time after exposure, to identify factors associated with interest, and to identify students' characteristics that positively influence performance metrics. Methods: This was a prospective, randomized, crossover study comprising 80 medical students who were randomized into group A (n = 40) and group B (n = 40). Participants completed a survey of their interest in vascular surgery and attitudinal factors using Vascular Surgery Interest Form (VSIF) before exposure to the simulator (pretest). At 1 month after exposure of group A to the simulator, both groups were tested using VSIF (test). Upon completion of testing, group B was exposed to simulator training, whereas group A received no further training. At 2 months after exposure of group B to the simulator, both groups were posttested using VSIF, which asked the students' level of interest in vascular surgery using a 1 to 10 scale. Performance metrics were recorded during each exposure. Differences among cohort demographics were determined using Pearson χ 2 analysis. Differences in interest were determined with paired sample correlations. Linear regression and analysis of variance were used to correlate VSIF responses with interest and the performance metrics. Results: Both student cohorts had significant increases in interest after exposure to simulation. In group A, test interest (mean ± standard deviation) was significantly higher than pretest and posttest interests (5.51 ± 1.73 vs 4.00 ± 1.88 vs 4.18 ± 1.82; P .05). In group B, posttest interest was significantly higher than pretest and test interests (5.62 ± 2.03 vs 3.96 ± 1.61 vs 4.08 ± 1.64; P .05). The increase in interest was reciprocally related to the time passed since the initial exposure. Resident and attending lifestyle, length of training, radiation concerns, gender identification of a mentor, and personality fit with occupation were not correlated with interest. Sex, medical school year, comfort with endovascular procedures, willingness to work long hours, interest in performing percutaneous procedures, and commitment to surgical career did not affect impact performance metrics. Conclusions: One exposure of students to endovascular simulator training is associated with an increase in vascular surgery interest. Acquired interest is reciprocally related to the time demonstrating the temporal importance of the exposure.
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机译：目的：本研究的主要目的是确定接受血管内模拟器培训是否增加了医学生对血管外科手术的兴趣。次要目标是确定对血管外科手术的兴趣是否与暴露后的时间成反比，确定与兴趣相关的因素以及确定对绩效指标产生积极影响的学生特征。方法：这是一项前瞻性，随机，交叉研究，由80名医学生组成，他们随机分为A组（n = 40）和B组（n = 40）。参与者在接触模拟器之前（预测试），使用“血管外科手术兴趣表”（VSIF）完成了他们对血管外科手术和态度因素的兴趣调查。 A组暴露于模拟器后1个月，两组均使用VSIF（测试）进行测试。测试完成后，B组接受了模拟器培训，而A组没有接受进一步的培训。将B组暴露于模拟器后2个月，两组均使用VSIF进行了后测试，这使用1到10的量表来询问学生对血管外科手术的兴趣程度。在每次曝光期间记录性能指标。使用Pearsonχ2分析确定队列人口统计学之间的差异。通过配对样本相关性确定兴趣差异。使用线性回归和方差分析将VSIF响应与兴趣和性能指标相关联。结果：两组学生在接受模拟后的兴趣都有显着增加。在A组中，测试兴趣（平均±标准差）显着高于测试前和测试后的兴趣（5.51±1.73对4.00±1.88对4.18±1.82; P <.05）。在B组中，测验后的兴趣明显高于测验前和测验的兴趣（5.62±2.03对3.96±1.61对4.08±1.64; P <.05）。利息的增加与自首次接触以来所经过的时间成反比。居民和参加者的生活方式，培训时间，辐射问题，指导者的性别认同以及与职业相适应的人格与兴趣无关。性别，医学院学年，血管内手术的舒适性，长时间工作的意愿，对进行经皮手术的兴趣以及对外科手术事业的投入都不会影响效果指标。结论：学生接受血管内模拟器培训的一次机会与对血管外科手术兴趣的增加有关。获得的兴趣与时间相关，表明时间的重要性。
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