Learning from the surgeon’s real perspective – First-person view versus laparoscopic view in e-learning for training of surgical skills? Study protocol for a randomized controlled trial

Mona Wanda Schmidt , Mirco Friedrich , Karl-Friedrich Kowalewski , Javier De La Garza , Thomas Bruckner , Beat-Peter Müller-Stich , Felix Nickel
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引用次数: 9

Abstract

Background

Surgical proficiency is highly dependent on continuous and efficient training. However, efficacy of training hinges on questions such as accessibility and how intuitively the training can be translated into reality. Minimally invasive surgery (MIS) in particular relies on adequate training modalities in order to compensate for its additional psychomotor and visuospatial challenges. The increasing demand for MIS procedures longs for further enhancement of training and steep learning curves. We are investigating a nouveau training concept that continuously utilizes the first person view as addendum to laparoscopic view. We hypothesize this approach to be more intuitive thus faster and more naturally to apprehend than a laparoscopic view only and aim to establish a new standard to implement into training curricula.

Methods and analysis

The present study is conducted as a monocentric, two-arm randomized trial. Participants undergo a training curriculum in laparoscopic suturing and knot tying, using e-learning video material with either the first-person perspective of the surgeon or the laparoscopic view only. Primary endpoint is the total training time needed to reach a predefined proficiency level. Participants are evaluated by blinded raters using validated checklists. Number of attempts, procedure and knot quality subscore difference as well as metric parameter analysis from the first and last knots analyzed as secondary endpoints. Furthermore, trainees are assessed with regard to surgical background, basic skills level and spatial awareness. A total sample size of 80 participants for the analysis of the primary endpoint was determined, which will be performed as a two-sided t-test.

Ethics and dissemination

Ethical approval was obtained from the Ethics Committee of the Medical Faculty at Heidelberg University (Code S-334/2011). This trial was registered with the German Clinical Trials Register (DRKS) in Freiburg, Germany, on May 6th (DRKS00009997). The results will be published and presented at appropriate conferences.

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从外科医生的真实视角学习——第一人称视角与腹腔镜视角在外科技能培训电子学习中的对比?随机对照试验的研究方案
手术熟练程度高度依赖于持续有效的培训。然而,培训的有效性取决于诸如可访问性以及如何直观地将培训转化为现实等问题。微创手术(MIS)尤其依赖于适当的训练模式,以弥补其额外的精神运动和视觉空间挑战。对管理信息系统程序日益增长的需求需要进一步加强培训和陡峭的学习曲线。我们正在研究一种新的训练概念,即不断利用第一人称视角作为腹腔镜视角的补充。我们假设这种方法比腹腔镜视图更直观,更快,更自然地理解,并旨在建立一个新的标准,以实施到培训课程中。方法与分析本研究采用单中心、双组随机试验。参与者接受腹腔镜缝合和打结的培训课程,使用电子学习视频材料,以外科医生的第一人称视角或仅以腹腔镜视角。主要终点是达到预定的熟练程度所需的总训练时间。参与者由盲法评分者使用有效的核对表进行评估。尝试次数,程序和结质量子评分差异以及从第一个和最后一个结分析的度量参数作为次要终点。此外,学员还会被评估手术背景、基本技能水平和空间意识。确定主要终点分析的总样本量为80名参与者,将采用双侧t检验。伦理和传播获得了海德堡大学医学院伦理委员会的伦理批准(代码S-334/2011)。该试验于5月6日在德国弗赖堡的德国临床试验注册中心(DRKS)注册(DRKS00009997)。研究结果将在适当的会议上发表和提出。
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期刊介绍: IJS Protocols is the first peer-reviewed, international, open access journal seeking to publish research protocols across across the full breadth of the surgical field. We are aim to provide rapid submission to decision times whilst maintaining a high quality peer-review process.
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