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Evaluation of minimally invasive surgical skills training: comparing a neonatal esophageal atresia/tracheoesophageal fistula model with a dry box

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Abstract

Background

Pediatric surgeons require highly advanced minimally invasive surgical skills to perform rare and complex surgeries in a very vulnerable population. We developed a neonatal esophageal atresia (EA) model to improve thoracoscopic surgical skills. This study aimed to evaluate the concurrent validity of the model by undertaking pre- and post-training skills assessments in two groups of students with no prior experience performing minimally invasive surgery, using the EA model and a dry box (DB).

Methods

A pilot study was performed. The participants were randomly divided into two groups: one trained using the DB and one trained using the EA model. Both groups practiced a minimally invasive surgical suture task. The task completion time, 29-point checklist score, modified suturing error sheet score, and three-dimensional forceps movement in both groups were compared pre-and post-training by video analysis.

Results

The EA model task was significantly more difficult than that of the DB. Both groups showed significant improvement in the task time, 29-point checklist score, and modified suturing error sheet score; however, the EA model training was more efficient in improving each error item. Regarding forceps movement, the EA model training significantly decreased wasted motion, whereas the DB was limited in this regard.

Conclusions

Short-term training on the EA model, which was more technically demanding than the DB, decreased technical error and wasted motion, and allowed learners to acquire surgical skills more efficiently than training with the DB model. These facts revealed the concurrent validity of the EA model.

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Acknowledgements

No preregistration exists for the reported studies reported in this article.

Funding

This research was supported by Japan Agency for Medical Research and Development under Grant Number 21vk0124002h0002.

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Authors and Affiliations

  1. Department of Pediatric Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan

    Kyoichi Deie & Michimasa Fujiogi

  2. Department of Pediatric Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan

    Yoichi Nakagawa, Hiroo Uchida, Akinari Hinoki, Chiyoe Shirota, Takahisa Tainaka, Wataru Sumida, Kazuki Yokota, Satoshi Makita, Masamune Okamoto, Aitaro Takimoto, Akihiro Yasui, Shunya Takada & Takuya Maeda

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  1. Kyoichi Deie
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Correspondence to Hiroo Uchida.

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Disclosures

Kyoichi Deie, Yoichi Nakagawa, Hiroo Uchida, Akinari Hinoki, Chiyoe Shirota, Takahisa Tainaka, Wataru Sumida, Kazuki Yokota, Satoshi Makita, Michimasa Fujiogi, Masamune Okamoto, Aitaro Takimoto, Akihiro Yasui, Shunya Takada, and Takuya Maeda declare that there are no conflicts of interest or financial interests to disclose.

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Deie, K., Nakagawa, Y., Uchida, H. et al. Evaluation of minimally invasive surgical skills training: comparing a neonatal esophageal atresia/tracheoesophageal fistula model with a dry box. Surg Endosc 36, 6035–6048 (2022). https://doi.org/10.1007/s00464-022-09185-y

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  • DOI: https://doi.org/10.1007/s00464-022-09185-y

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