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Background <p>Mastery of vascular anastomosis is a fundamental skill for surgical trainees, yet opportunities for hands-on practice are often limited by equipment availability and concerns regarding patient safety. Simulation-based training offers an effective solution; however, many existing models lack objective performance assessment. This study evaluated a novel vascular anastomosis simulation model incorporating an integrated leakage testing system designed to provide immediate structured feedback.</p> Methods <p>A prospective pre–post interventional study was conducted involving 39 general surgery residents (postgraduate years 1–4). Participants initially performed an end-to-end vascular anastomosis on the simulation model without prior instruction. They subsequently received standardized video-based instruction followed by supervised practice and repeated the procedure. Performance outcomes included anastomosis completion time and leakage grading assessed under controlled pressure conditions. Trainee satisfaction was evaluated using a validated simulation-based learning questionnaire.</p> Results <p>Following the educational intervention, the proportion of procedures demonstrating severe leakage (Grade 3) decreased significantly from 69.3% to 28.1% (<i>p</i> = 0.001). Mean anastomosis completion time improved from 22.18 ± 8.45&#xa0;min to 18.42 ± 6.88&#xa0;min. Second- and third-year residents demonstrated statistically significant reductions in procedural time. All participants (100%) agreed that simulation-based learning was a useful educational strategy, and 70% reported a perceived improvement in psychomotor skills.</p> Conclusions <p>This novel vascular anastomosis simulation model, with integrated leakage testing, was associated with improved simulator-based performance outcomes and procedural efficiency among surgical residents. The model provides a reproducible and low-cost platform for vascular anastomosis practice and structured performance assessment. Further studies are needed to establish its validity, long-term retention of simulator-based performance outcomes, and the potential relationship between simulator and operative performance.</p>

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Enhancement of vascular anastomosis training using a novel simulation model with integrated leakage testing

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月24日

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  • Nuttapon Arpornsujaritkun,
  • Satayu Peamal,
  • Piyanut Pootracool,
  • Surasak Leela-Udomlipi,
  • Wiwat Tirapanich,
  • Suthas Horsirimanont,
  • Sopon Jirasiritham,
  • Chaowanun Pornwaragorn,
  • Nutsiri Kittitirapong,
  • Gorawee Tepsamrithporn,
  • Goragoch Gesprasert,
  • Bundit Sakulchairungrueng,
  • Nipapan Choonu,
  • Chumpon Wilasrusmee

摘要

Background

Mastery of vascular anastomosis is a fundamental skill for surgical trainees, yet opportunities for hands-on practice are often limited by equipment availability and concerns regarding patient safety. Simulation-based training offers an effective solution; however, many existing models lack objective performance assessment. This study evaluated a novel vascular anastomosis simulation model incorporating an integrated leakage testing system designed to provide immediate structured feedback.

Methods

A prospective pre–post interventional study was conducted involving 39 general surgery residents (postgraduate years 1–4). Participants initially performed an end-to-end vascular anastomosis on the simulation model without prior instruction. They subsequently received standardized video-based instruction followed by supervised practice and repeated the procedure. Performance outcomes included anastomosis completion time and leakage grading assessed under controlled pressure conditions. Trainee satisfaction was evaluated using a validated simulation-based learning questionnaire.

Results

Following the educational intervention, the proportion of procedures demonstrating severe leakage (Grade 3) decreased significantly from 69.3% to 28.1% (p = 0.001). Mean anastomosis completion time improved from 22.18 ± 8.45 min to 18.42 ± 6.88 min. Second- and third-year residents demonstrated statistically significant reductions in procedural time. All participants (100%) agreed that simulation-based learning was a useful educational strategy, and 70% reported a perceived improvement in psychomotor skills.

Conclusions

This novel vascular anastomosis simulation model, with integrated leakage testing, was associated with improved simulator-based performance outcomes and procedural efficiency among surgical residents. The model provides a reproducible and low-cost platform for vascular anastomosis practice and structured performance assessment. Further studies are needed to establish its validity, long-term retention of simulator-based performance outcomes, and the potential relationship between simulator and operative performance.