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Original Research

Open Access

The effectiveness of the cadaver-based educational seminar for trauma surgery (C-BEST) for residents

  • Hiroshi Homma1
  • Jun Oda1
  • Hidefumi Sano1
  • Shinichi Kawata2
  • Masahiro Itoh2

1Department of Emergency and Critical Care Medicine, Tokyo Medical University, 6-7-1 Nishishinjuku, 160-0023 Shinjuku-ku, Tokyo, Japan

2Department of Anatomy, Tokyo Medical University, 6-1-1 Shinjuku, 160-8402 Shinjuku-ku, Tokyo, Japan

DOI: 10.22514/sv.2021.140 Vol.18,Issue 1,January 2022 pp.115-121

Submitted: 04 June 2021 Accepted: 16 July 2021

Published: 08 January 2022

*Corresponding Author(s): Hiroshi Homma E-mail:


To assess the effectiveness of the cadaver-based educational seminar for trauma surgery (C-BEST) for residents using a 10-point self-assessment of confidence levels (SACL) survey. We collected data, including SACL for 21 surgical skills and an evaluation of the contents before, immediately after, and half a year after the seminar, from 42 seminars conducted between January 2013 and March 2019. On comparing SACL results from evaluations at the three time points using statistical analysis, a p value of <0.05 was obtained. We enrolled 412 participants; of the 52 residents, 47 respondents were included in the study. Improvements in all skills were observed on comparing SACL before and immediately after the seminar (2.2 ± 2.6 vs. 5.3 ± 2.5; p < 0.001), but a decrease was observed between immediately after and half a year after the seminar (5.3 ± 2.5 vs. 4.9± 2.7; p < 0.01). Upon examining the results according to each skill, SACL did not decrease between immediately after and half a year after the seminar (p > 0.05). The most performed procedure was left anterior thoracotomy and aortic clamp (n = 13), and the number of residents majoring in surgery increased from 27 to 32 half a year after the seminar. C-BEST boosts more self-confidence of the participating residents immediately after the seminar. Although this effect is not maintained half a year after the seminar, many participants practiced their skills after the seminar. Therefore, C-BEST is useful for residents with little surgical experience; this may also inspire the residents to major in surgery.


Cadaver-based educational seminar for trauma surgery (C-BEST); Skill retention; Half a year follow-up; Self-assessment of confidence levels; Residents

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Hiroshi Homma,Jun Oda,Hidefumi Sano,Shinichi Kawata,Masahiro Itoh. The effectiveness of the cadaver-based educational seminar for trauma surgery (C-BEST) for residents. Signa Vitae. 2022. 18(1);115-121.


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